Comets may have seeded Earth with life-supporting carbon
The chemical element was spotted in the dusty "fingerprints" of an icy comet.
planets
Scientists found an Earth-sized ‘rogue’ planet in the Milky Way
It could be the smallest free-floating planet ever detected.
Scientists find an Earth-like planet hiding in old Kepler data
It's sitting in the habitable zone of a star studied years ago.We have two newsletters, why not sign up for both?
BepiColombo orbiters take off for Mercury tonight
It’s just the third mission to the planet, and the craft won’t arrive until 2025.
Mars has a less dense crust than astronomers thought
Understanding the crust provides important information about the planet’s evolution.
Hubble telescope spots evidence of water on Trappist-1 planets
There's a very slim chance the planets are habitable.
Optical laser uses shockwaves to peer inside distant planets
It has as much kick as 17 Teslas discharging their batteries in a second.
Trappist-1 planets may have formed from chunks of melting ice
A new theory explains why the planets are so close together and similar in size.
The search for a habitable second Earth
We’ve never had a better chance of finding extraterrestrial life -- if it exists.
ICYMI: A prosthetic hand with two senses
The better to grab objects with, my dear
New Horizons scientists want to redefine what planets are
They're led by Alan Stern, the principal investigator for NASA's Pluto mission.
NASA is crowdsourcing the search for exoplanets
Your eyeballs can spot planets far better than algorithms.
Researchers offer new evidence of a liquid ocean on Pluto
Two new theories try to explain the dwarf planet's heart-shaped depression.
ESA releases first color photos of the EXOMARS crash site
It appears to confirm suspicions of the lander's impact fragmentation.
7After Math: Only the essentials
Of course that includes the matched luggage.
A third of the world can no longer see the Milky Way
Thanks to light pollution, one in three of us can’t see the galaxy anymore.
Astronomers may have found the Solar System's 9th planet
No, it still isn't Pluto.
See what every star system Kepler's found looks like compared to ours
See all 1,700 exoplanets we currently know about
