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Why are humans the only species with a chin?
Potential explanations abound, yet recent research has shed new light on the question.
NASA’s Hubble accidentally caught a comet breaking apart in real time
In an incredibly lucky cosmic accident, NASA’s Hubble Space Telescope captured a comet breaking apart in real time—something astronomers have long tried and failed to observe. The comet, C/2025 K1 (ATLAS), wasn’t even the original target, but when researchers pivoted to it, they unknowingly caught i
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Astronomers keep finding new moons of Jupiter and Saturn
Astronomers have found four new moons orbiting Jupiter and 11 new moons around Saturn.
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US Space Force moves GPS launch to SpaceX Falcon 9 due to Vulcan rocket glitch
The U.S. Space Force has swapped rockets for an upcoming GPS satellite launch, moving to a SpaceX Falcon 9 while the investigation into an anomaly with ULA's Vulcan Centaur continues.
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Cannonball dating to the Alamo battle unearthed 1 day before 190th anniversary of the conflict that killed Davy Crockett
An intact bronze cannonball unearthed near the Alamo was likely used in the 1836 battle between Mexico and the Republic of Texas.
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Love Project Hail Mary? Here are the Andy Weir books you need to read
Has Project Hail Mary left you craving more of Andy Weir's work? We've rounded up the best of Andy Weir's sci-fi books, from The Martian to Artemis.
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'Project Hail Mary' is an optimistic look towards the stars, and we need that right now
'Amaze, amaze, amaze!'
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Hubble Space Telescope accidentally witnesses comet C/2025 K1 (ATLAS) breaking apart
NASA's Hubble Space Telescope has captured a rare cosmic moment: a comet breaking apart in real time.
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Northern lights may be visible in 18 states tonight and over the weekend
Auroras may be visible from Alaska to Illinois tonight and over the weekend as several coronal mass ejections and fast solar wind impact Earth.
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NASA's Artemis II rocket rolls to launch pad in final bid to meet April deadline
A series of leaks means the coming launch window will be NASA's final attempt to meet its April mission deadline.
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Rocket Lab scores $190 million launch deal to test hypersonic tech for US military
Rocket Lab has inked a $190 million contract with the U.S. Department of Defense for 20 launches of the company's suborbital HASTE rocket.
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Artemis 2 moon rocket rolls back to launch pad | Space photo of the day for March 20, 2026
NASA's Space Launch System rocket was back on the move overnight ahead of its second mission to the moon, which will be the first time the vehicle carries a crew.
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Human-driven climate change is slowing Earth's rotation at a rate not seen in 3.6 million years
Today's sea level rise is significant enough to slow the rotation of the planet by just over a millisecond per century.
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A gene carried by 99% of humanity raises Alzheimer's risk dramatically. Could gene therapy correct it?
New research suggests that a single gene may play an outsize role in developing Alzheimer's, which suggests gene therapy for the condition could reach many people.
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NASA's Artemis 2 moon rocket arrives back at the launch pad
NASA's SLS rocket is back at the launch pad as the space agency gears up to launch Artemis 2 astronauts on a mission around the moon next month.
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Northern lights could get a boost from the spring equinox this weekend — here's why
Incoming solar storms could spark auroras this weekend and thanks to the spring equinox, Earth is perfectly aligned to amplify the show.
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I was at ground zero for the AIDS epidemic. RFK's cuts could fuel a new pandemic, just when elimination seemed within reach.
RFK Jr.'s cutbacks may leave us near-defenseless against HIV spread, but moments in the past show how we can stop the seemingly inevitable.
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NASA won't give up hope on silent MAVEN Mars probe: 'We're still looking for it'
NASA has not reestablished contact with its MAVEN Mars orbiter since a planned communications blackout ended Jan. 16.
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Live Science Today: Monte Verde controversy and heatwave lashes the West
Friday, March 20, 2026: Your daily roundup of the biggest science stories making headlines.
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Astronomers missed a space explosion as powerful as a billion suns — until they spotted its echo
A cosmic explosion with an energy equivalent to the output of a billion suns went unnoticed by astronomers until they caught the "echo" of this gamma-ray burst.