Close
Date TimeApril 25, 2019
VoiceEver since NASA's InSight mission placed its dome-shaped seismometer onto the dusty Martian surface in December, hopes were high that the robotic lander would quickly detect its first Martian quake, or "Marsquake." Well, the wait is finally over – the mission's Seismic Experiment for Interior Structure (SEIS) confirmed its first faint rumble coming from inside the red planet on April 6 (on the 128th Martian day, or sol, of the mission), confirming that Mars is seismically active.
NASAs InSight Mission Detects Its First Marsquake
"We've been waiting months for a signal like this," Philippe Lognonné, SEIS team lead at the Institut de Physique du Globe de Paris (IPGP) in France, said in a NASA statement. "It's so exciting to finally have proof that Mars is still seismically active. We're looking forward to sharing detailed results once we've had a chance to analyze them."
NASA hopes to use seismic signals like these to give Mars a health-check of sorts. Like a doctor placing a stethoscope on their patient's chest, InSight is doing something similar: It's trying to "hear" what makes the planet "tick." On Earth, the cacophony of seismic signals bouncing around our planet's interior become distorted as they encounter regions of different densities. By measuring these seismic waves, we've learned about the different, unreachable layers deep underground.
Mars' interior is something of an enigma; the planet doesn't have a global magnetic field for reasons we have yet to fully understand and its volcanic activity was extinguished hundreds of millions of years ago. If the planet is geologically (or, more accurately, "areologically") dead, how can it produce marsquakes at all? It's thought that as the planet cools, it shrinks, crackling with small quakes that echo throughout the Martian interior. Mission scientists also want to listen out for meteorite impacts that will produce their own mini temblors, perhaps turning InSight into a real-time meteorite detector.
Until now, marsquakes were a theoretical possibility, but now that we know they are there, they can be used by InSight to understand what lies beneath the planet's surface.

According to mission scientists, this first marsquake is a pipsqueak and nothing like the tremors we are used to in Southern California. On Mars, however, this weak quake stands out in the comparative silence of Mars' quiet innards. Other weaker seismic signals have been also heard (on March 14, April 10, and April 11), but their origins are more ambiguous.
Although the April 6 event was too weak to be used to gain much information about the Martian interior, scientists are excited as we've seen something like it before – on the Moon.
"The Martian Sol 128 event is exciting because its size and longer duration fit the profile of moonquakes detected on the lunar surface during the Apollo missions," said Lori Glaze, Planetary Science Division director at NASA Headquarters.
During the Apollo program, astronauts placed five seismometers on the lunar surface, which detected thousands of "moonquakes" between 1969 and 1977. These seismic waves helped scientists learn about the lunar interior and even helped model its formation. Although InSight is just one seismometer on Mars, scientists hope that it will give us a window into the mysterious Martian interior that we know so little about.
"InSight's first readings carry on the science that began with NASA's Apollo missions," InSight Principal Investigator Bruce Banerdt of NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California said in a press release. "We've been collecting background noise up until now, but this first event officially kicks off a new field: Martian seismology!"

Related Stories
NASAs Mars Helicopter Testing Enters Final PhaseNASA's Mars Helicopter Testing Enters Final Phase
Trump Tweets About Moon, Mars, the Internet Scratches Its HeadTrump Tweets About Moon, Mars, the Internet Scratches Its Head
NASA captures stunning photo of the entire sky in X-rayNASA captures stunning photo of the entire sky in X-ray
NASA boss says no doubt SpaceX explosion delays flight programNASA boss says 'no doubt' SpaceX explosion delays flight program
Astronauts snapped an incredible photo of a volcano erupting in the Pacific OceanAstronauts snapped an incredible photo of a volcano erupting in the Pacific Ocean
Mars has a brand new crater, and it sure is prettyMars has a brand new crater, and it sure is pretty
NASA wants astronauts to go back to the moon in 2024NASA wants astronauts to go back to the moon in 2024
NASA reveals details of plans to put astronauts on the Moon by 2024NASA reveals details of plans to put astronauts on the Moon by 2024
NASA tests abort system for spacecraft that will carry humans to the moon in 2024NASA tests abort system for spacecraft that will carry humans to the moon in 2024
Hubble Captures Stunning Fireworks of Exploding StarHubble Captures Stunning Fireworks of Exploding Star
News Trends
Beyonce Hugs Meghan Markle at Londons Lion King PremiereBeyonce Hugs Meghan Markle at London's 'Lion King' Premiere
Amazon Protesters to Deliver Petition of 270,000 Signatures to Jeff BezosAmazon Protesters to Deliver Petition of 270,000 Signatures to Jeff Bezos
Trump doubles down on ‘go back’ tweets amid outrage, calls on ‘Radical’ reps to apologizeTrump doubles down on ‘go back’ tweets amid outrage, calls on ‘Radical’ reps to apologize
Love Islands Amy flirts with Curtis brother AJ PritchardLove Island's Amy flirts with Curtis' brother AJ Pritchard
Wimbledon commentator blasted for Mirka Federer ‘costume jewellery’ commentWimbledon commentator blasted for Mirka Federer ‘costume jewellery’ comment
The father of modern computing: Alan Turings legacyThe father of modern computing: Alan Turing's legacy
As Big Little Lies airs its penultimate episode, what exactly happened this season?As Big Little Lies airs its penultimate episode, what exactly happened this season?
Facebook-Driven Area 51 Storming May Be Countered With Force, Says US Air ForceFacebook-Driven Area 51 Storming May Be Countered With Force, Says US Air Force
Hillary Clinton attacks Trump over tweet aimed at progressive congresswomenHillary Clinton attacks Trump over tweet aimed at progressive congresswomen
Charles Levin, Hollywood actor, found deadCharles Levin, Hollywood actor, found dead
Leaders
Donald-TrumpDonald Trump
45th President of the United States of America
Mike-PenceMike Pence
Vice President of the United States
Theresa-MayTheresa May
British Prime Minister
Angela-MerkelAngela Merkel
Chancellor of Germany
Emmanuel-MacronEmmanuel Macron
President of France
Justin-TrudeauJustin Trudeau
Prime Minister of Canada
Nancy-PelosiNancy Pelosi
Speaker of the United States House of Representatives
Barack-ObamaBarack Obama
44th U.S. President
Vladimir-PutinVladimir Putin
Russian President
Shinzo-AbeShinzō Abe
Prime Minister of Japan
Related Stories
NASAs Mars Helicopter Testing Enters Final PhaseNASA's Mars Helicopter Testing Enters Final Phase
Trump Tweets About Moon, Mars, the Internet Scratches Its HeadTrump Tweets About Moon, Mars, the Internet Scratches Its Head
NASA captures stunning photo of the entire sky in X-rayNASA captures stunning photo of the entire sky in X-ray
NASA boss says no doubt SpaceX explosion delays flight programNASA boss says 'no doubt' SpaceX explosion delays flight program
Astronauts snapped an incredible photo of a volcano erupting in the Pacific OceanAstronauts snapped an incredible photo of a volcano erupting in the Pacific Ocean
Mars has a brand new crater, and it sure is prettyMars has a brand new crater, and it sure is pretty
NASA wants astronauts to go back to the moon in 2024NASA wants astronauts to go back to the moon in 2024
NASA reveals details of plans to put astronauts on the Moon by 2024NASA reveals details of plans to put astronauts on the Moon by 2024
NASA tests abort system for spacecraft that will carry humans to the moon in 2024NASA tests abort system for spacecraft that will carry humans to the moon in 2024
Hubble Captures Stunning Fireworks of Exploding StarHubble Captures Stunning Fireworks of Exploding Star
News Trends
Beyonce Hugs Meghan Markle at Londons Lion King PremiereBeyonce Hugs Meghan Markle at London's 'Lion King' Premiere
Amazon Protesters to Deliver Petition of 270,000 Signatures to Jeff BezosAmazon Protesters to Deliver Petition of 270,000 Signatures to Jeff Bezos
Trump doubles down on ‘go back’ tweets amid outrage, calls on ‘Radical’ reps to apologizeTrump doubles down on ‘go back’ tweets amid outrage, calls on ‘Radical’ reps to apologize
Love Islands Amy flirts with Curtis brother AJ PritchardLove Island's Amy flirts with Curtis' brother AJ Pritchard
Wimbledon commentator blasted for Mirka Federer ‘costume jewellery’ commentWimbledon commentator blasted for Mirka Federer ‘costume jewellery’ comment
The father of modern computing: Alan Turings legacyThe father of modern computing: Alan Turing's legacy
As Big Little Lies airs its penultimate episode, what exactly happened this season?As Big Little Lies airs its penultimate episode, what exactly happened this season?
Facebook-Driven Area 51 Storming May Be Countered With Force, Says US Air ForceFacebook-Driven Area 51 Storming May Be Countered With Force, Says US Air Force
Hillary Clinton attacks Trump over tweet aimed at progressive congresswomenHillary Clinton attacks Trump over tweet aimed at progressive congresswomen
Charles Levin, Hollywood actor, found deadCharles Levin, Hollywood actor, found dead
Leaders
Donald-TrumpDonald Trump
45th President of the United States of America
Mike-PenceMike Pence
Vice President of the United States
Theresa-MayTheresa May
British Prime Minister
Angela-MerkelAngela Merkel
Chancellor of Germany
Emmanuel-MacronEmmanuel Macron
President of France
Justin-TrudeauJustin Trudeau
Prime Minister of Canada
Nancy-PelosiNancy Pelosi
Speaker of the United States House of Representatives
Barack-ObamaBarack Obama
44th U.S. President
Vladimir-PutinVladimir Putin
Russian President
Shinzo-AbeShinzō Abe
Prime Minister of Japan
Putin: Maria Butina's sentence is 'lawlessness'
Donald Trump to withdraw US from Arms Trade Treaty
'Avengers: Endgame' Star Chris Evans for Men's Journal Magazine
Fake heiress Anna Sorokin found guilty after fooling banks and New York's elite
World Championship 2019: Mark Selby loses to Gary Wilson
Sam Donaldson Explains How Sarah Huckabee Sanders' Lying Is Unprecedented
Idris Elba marries Sabrina Dhowre in Morocco
‘Santa Clarita Diet’ Canceled After Three Seasons at Netflix
Facebook investigated by New York AG over email harvesting
Joe Biden Announces 2020 US Presidential Bid
Daniel Craig's final outing as James Bond will include Rami Malek as the bad guy
Parents of murdered AJ Freund, 5, ‘made him stand under freezing shower to punish him’
Stefanie Sherk, Actress and Wife to Demian Bichir, Dies at 43
NFL Draft 2019: Giants pick Daniel Jones, Dwayne Haskins LAUGHS and fans are shocked
Plan for Banksy art gallery in Port Talbot may be under threat
Lord of the Rings star in fiery CLASH with Caroline Lucas on BBC QT 'Our last GREAT hope'
Taylor Swift releases her new song 'ME!'
Lyra McKee funeral: politicians urged to seize the moment
The Greta Thunberg effect: her activism in London in two minutes - video
Jennifer Garner thinks her face on cover of People's Beautiful Issue is 'so ridiculous'
Rapper Bun B Shoots Armed Robber in His Houston Home
SpaceX Crew Dragon Accident Another Bump in the Road for Commercial Crew
Meghan Markle and Prince Harry wrote a sweet birthday message for Prince Louis, but some people think it broke royal protocol
Elon Musk told this Reddit user they 'should interview at Tesla', here's why
‘His career was incredible’. Billy McNeill was a winner as player and manager
Natalie Portman makes a surprise appearance at the Avengers: Endgame premiere
Seahawks, Chiefs blow up NFL draft with Frank Clark trade
Jared Kushner dubs Trump-Russia investigation 'a big distraction'
Vanessa Hudgens reveals why she is ‘grateful’ for her romance with Zac Efron
Tesla to Investigate Car That Appeared to Burst Into Flames in Shanghai
Stephen Graham says This Is England role nearly ended his acting career
Maisie Williams could show 'as much or as little' as she wanted in shocking 'Game of Thrones' sex scene
Sri Lanka Attacks: Asos Billionaire Loses Three Children In Easter Sunday Blasts
These 10 Democrats Want Trump Impeached
Rep. Seth Moulton Launches 2020 Presidential Bid
Why observe Earth Day on April 22?
Beyoncé lands $60M deal with Netflix
Tesla’s Elon Musk could earn up to $2.2 billion from stock options
Paris police use tear gas against 'yellow vest' protesters
Adele announces separation from husband Simon Konecki
Elizabeth Warren says House should start impeachment proceedings for Trump
Michelle Williams and her husband, musician Phil Elverum, have split
These Wisps Around Black Holes Could Reveal How the Cosmic Beasts Eat
'Boyz n the Hood' director John Singleton suffers stroke: report
Newcastle boss Rafa Benitez wants ONE thing to STAY - Michael Owen reveals what he's heard
Johnny Depp Allegedly Tried to Get Amber Heard Fired From Aquaman
Kourtney Kardashian's ex Younes Bendjima attends her 40th birthday party
Emma Thompson Joins Extinction Rebellion In Climate Change Protest
Lil Dicky drops the music video of his environmental anthem, 'Earth'
Dissecting Taylor Swift’s April 26 clues
The cause of the Notre Dame Cathedral fire remains unknown. Everything else is a rumor
Kathie Lee Gifford Reacts to Hoda Kotb’s Surprise Baby News
Westbrook vows to play better after loss
Mark Carney tells global banks they cannot ignore climate change dangers
Beyoncé's 'Homecoming' is as black as it can be
SpaceX loses Falcon Heavy's center booster to the sea
Why Netflix Has A 'Game Of Thrones' Problem
Trump Campaign Makes Minnesota An Early 2020 Target
Actor Lori Loughlin, other parents plead not guilty in U.S. college admissions case
Georgia Engel, who played Georgette on The Mary Tyler Moore Show, has died
Would you visit a 'fake' Notre Dame? You're already doing it at other sites
Russell Wilson and the Seahawks win with record extension
Coachella day three review: Ariana Grande on fire and Pusha T on an iceberg
Man, Woman, and Robot in Ian McEwan’s New Novel
Thousands join Extinction Rebellion protests across London
Hillsborough: Jury fails to reach verdict in David Duckenfield trial
Sarah Hyland Shows Off Her Toned Abs In Green Sports Bra While Hitting The Gym
Facebook investors launch desperate bid to oust Mark Zuckerberg
Uber IPO: Former CEO Travis Kalanick to earn billions
Chinese GP: Bottas Takes Pole For His 1000th F1 Race, Hamilton Finishes 2nd in Qualifying
BTS performed on SNL and fans went crazy
Interview with American Top Team’s Dustin Poirier who headlines UFC 236 for a title
The Perfect Date review: Netflix’s latest Noah Centineo movie is fine
Ariana Grande, who has opened up about PTSD, posts images of her brain scans on Instagram
Tesla Shifts Gears, Again, and Some Fans Are Losing Patience
Julian Assange arrest: justice or a threat to free press?
Annunziata Rees-Mogg to stand as MEP for Farage's Brexit party
Comedians pay tribute to Ian Cognito after standup dies on stage
Jaden Smith Shouts Out Nipsey Hussle, Rides Flying Car During Coachella Set
‘Guava Island’ First Look: Childish Gambino’s Mystery Project With Rihanna Is Unveiled
Is New Taylor Swift Music on the Way? Countdown Clock Suggests April 26 Release
Vasiliy Lomachenko defeats Anthony Crolla with fourth-round knockout
Katie Bouman, the MIT grad who made first-ever photograph of black hole possible
Trick or treat? EU, UK agree to delay Brexit until Halloween
Pavelski's painful goal sparks Sharks' take down of Vegas
Jane the Virgin's Latest Cliffhanger Creates Torture For Everyone
Good-bye glaciers: 390 billion tons of snow and ice melts each year as globe warms
Will Emmanuel Macron veto Theresa May's Brexit extension?
Farewell Fleabag: the most electrifying, devastating TV in years
Chris Davis sets record at 0 for 49, including warning track shot
Felicity Huffman to plead guilty in college admissions cheating case
Dean Ambrose’s Last WWE Match Becomes Brawl With Bobby Lashley
Twenty prison officers injured after violence at Feltham youth jail
Debenhams on brink despite Mike Ashley's last-minute offer
Humans are about to see the first-ever photo of a 'supermassive' black hole. Here what we hope to discover
At Least 6 People Shot in Chicago: Police
Pushing for Tighter Borders, President Asks Jews for Support
'Game Of Thrones' Castmates Turn Up To Ask 'SNL' Host Kit Harington How It All Ends
Charlie Rowley: Novichok victim meets Russian ambassador
Rapper Kodak Black accused of sexual assault: Prosecutor
Texas Tech's historic national title shot, courtesy of hero Matt Mooney
Prince Harry and Meghan Markle break Guinness World Record with new Instagram account
Lauren Sanchez Files for Divorce After Bezos Split Finalized
Judge orders Elon Musk and the SEC to settle Tesla tweet dispute
Trump's threat to close the border was just a trap for Democrats
Mick Jagger 'on the mend' following heart surgery
Britain starts issuing passports without 'European Union' on cover
Grand National 2019 sees awkward moment as six attendees wear same PrettyLittleThing dress
Falcon Heavy SpaceX Launch Will Mark First Commercial Mission
Kurt Cobain died 25 years ago today. A fan recalls seeing Nirvana play on the verge of fame
Lil Nas X Added Billy Ray Cyrus to ‘Old Town Road.’ Is It Country Enough for Billboard Now?
Tesla is selling fewer cars, but says it has ‘sufficient’ cash
Joker Trailer: First Look At Joaquin Phoenix As DC Villain In New Clips
Ohio teen tells investigators he's Timmothy Pitzen, child who disappeared in Illinois in 2011: report
Britney Spears reportedly checks herself into mental health facility
Bryce Harper embraces return to Washington
‘This Is Us’ finale ends season with a slew of new questions
Supermodel Amber Rose Announces She’s Expecting Her Second Child
‘Thrones’ actress Gwendoline Christie dazzles at NYC premiere
Trump lashes out at Democrats over Puerto Rico aid vote
Kim Kardashian reveals baby name she's considering for fourth child
Ernie Grunfeld fired as president of the Washington Wizards
Avengers Endgame tickets ballot opens for HUGE fan event in London: How to enter
Tania Mallet, Bond girl in 'Goldfinger,' dies aged 77
‘Keeping Up With the Kardashians’ Returns With Its New Star: Kanye West?
Rare glimpse into Saudi Aramco shows $111 billion net profit
Google adds Snake to Maps for April Fools' Day gag
Nipsey Hussle: Grammy-nominated rapper shot dead in LA
NASA Announces Successful Completion of ISS Spacewalk
Kylie Jenner Speaks Out About Jordyn Woods' Lip Kip Price Cut After Tristan Thompson Cheating Scandal
Saudis gained access to Amazon CEO Bezos' phone: Bezos' security chief
Brexit: Theresa May considers next step to break deadlock
Charles Leclerc pips Sebastian Vettel to Bahrain F1 pole on Ferrari’s day
Kash Ali disqualified for biting David Price in bizarre heavyweight bout
Attorney: NBA star Kristaps Porzingis is accused of rape
Suspect charged in slaying of University of South Carolina student Samantha Josephson
The Rolling Stones postpone U.S. shows, citing advice of Mick jagger's doctors
Purdue’s Carsen Edwards can match Steph Curry NCAA Tournament scoring mark
NASA will pay people $19000 to stay in bed for 2 months
Trump mocks Green New Deal, pokes fun at electric cars during Michigan rally
Texas Tech passes Michigan exam ... but bigger test awaits
Miami Open: Roger Federer reaches quarters, Simona Halep eyes No. 1 ranking
Anger and irreverence on the Brexit Day that wasn't
Justin Bieber Takes a Break From Music To Focus on Mental Health
Cardi B Is Defending Herself After A Video Showed Her Saying She Used To Drug And Rob Men: I Always Own My Shit
Conor McGregor reportedly under investigation for sexual assault
Jussie Smollett: Chicago mayor attacks 'whitewash of justice' as charges dropped
Ranking Roger Dead: The Beat And General Public Singer Dies, Aged 56
Mission Shakti, a long-desired capability tested
Vandals strike again: Downtown statue of Queen Victoria doused in green paint
Government could ignore indicative Brexit votes, says Liam Fox
Scott Walker, experimental pop hero, dies aged 76
Mel B Claims She Slept With Geri Halliwell During Spice Girls Era
‘Shazam!’ Film Review: DC Comics Gets a Bouncy Burst of Big-Screen Ebullience
Sydney Aiello, a survivor of the Parkland school shooting, dies by suicide
Larry Cohen, Writer-Director of 'It's Alive' and 'Hell Up in Harlem,' Dies at 77
Kylie Jenner Doubles Down On Being A 'Self Made' Billionaire
Robert Mueller report will be a gold mine of improprieties. Trump shouldn't celebrate yet
Brexit stitch up: Revoke Article 50 petition hits 4 million – could pass 5 million TONIGHT
Barbra Streisand criticized after saying experience 'didn't kill' Michael Jackson accusers
Persona 5: The Royal Announced for PS4
The Obamas Show Support For Jennifer Lopez and Alex Rodriguez's Engagement in the Sweetest Way
Trump to lift 'not necessary' North Korea sanctions, White House confirms
Historic Midwest flooding devastates Nebraska, Iowa
Brooke Henderson three back after opening round of LPGA Thailand
Prince Harry and Meghan Markle Honor New Zealand Shooting Victims
Mike Trout and LA Angels close to $430m deal, largest in sports history
Donald Trump suggests Brazil could join Nato as he meets Jair Bolsonaro
Here’s how you’ll access Google’s Stadia cloud gaming service
Will Jennifer Lopez Use a Cheating Clause in Her Prenup With Alex Rodriguez?
Chelsea Clinton Apologizes To Students Who Blame Her For NZ Attack
Australian Senator Fraser Anning punches teen after being egged
Lewis Hamilton responds to Valtteri Bottas message after Australian GP battle
Taylor Swift debuts pink hair at iHeartRadio Music Awards
Glastonbury 2019 Line-Up Announced With The Killers And The Cure Joining Stormzy As Headliners
Tesla Model Y: Musk's latest electric vehicle is almost here
'Avengers: Endgame' recruits a familiar face to save the world in new trailer: 'Whatever it takes'
Mosque attacks spark outrage, fuel concern over Islamophobia
New Zealand shooting: PewDiePie reacts after gunman named him before Christchurch attack
New Zealand Shooting: At Least 49 Dead After Massacre At New Zealand Mosques
Crew of Soyuz launch abort set for second try
Why a Kardashian-Jenner Biopic May Be in Our Near Future
Netflix confirms Madeleine McCann documentary release date
F1 race director Charlie Whiting dead
Triple Frontier Review: As They Say, Greed Is a Bottomless Pit
South Florida native Lamar Jackson records Instagram video of himself driving 105 MPH
The Tesla Model Y Is Coming, But Who Is Ready For It?
Frank Cali, alleged boss of New York's Gambino mafia family, shot dead outside his Staten Island home
Beto O’Rourke says he is running for US president
Pi day: What is Pi Day? How have Google broken a world record for Pi?
Kendall Jenner wears Ben Simmons’ jersey at Philadelphia 76ers game
Altior wins the Champion Chase
Jay Leno: Late-Night Shows Are Too Political
Desperate Housewives actress Felicity Huffman among 50 people arrested over £19m college admissions scam
Johnny Depp ‘Overwhelmed’ By Fan Support After Amber Heard Lawsuit
May Day: UK Parliament rejects prime minister’s Brexit deal
Hannah Brown Is the New Star of The Bachelorette, And She Already Gave Out a Rose
AP sources: Browns acquire Odell Beckham Jr. from Giants
One of the Most Recorded Musicians in History Is Dead
Brexit: Legal risk of backstop remains 'unchanged' says Geoffrey Cox
Close