Comets
Everything You Need to Know About the Amazing Comet 21P
The comet is currently flying towards the inner Solar System at speeds of more than 51,000 miles per hour.
Comet 21P to Make Closest Approach to Earth in 70 Years
The comet is currently travelling through space at speeds of more than 51,000 miles per hour
Watch: Comet Zips Past Planet-Hunting Telescope
The video also shows stars, asteroids and even an arc of stray light from Mars.
Green Comet Makes Closest Approach to Earth
In two weeks, the comet will travel closer to the Sun than Mercury.
Interstellar Dust Older Than the Sun Showers Earth
"We [may] have at our fingertips the starting materials of planet formation from 4.6 billion years ago."
Comet Dust Opens Door To Finding Solar System's Origin
The space instrument COSIMA has collected 35,000 particles of dust from the comet.
Michigan Meteor: How Likely Is it to Happen Again?
Events like these occur dozens of times each year. Why was this one special?
How Quickly Can NASA Detect Incoming Asteroids?
NASA may not be that swift in detecting the hazards, but your odds of getting killed by an asteroid are roughly one in 700,000.
NASA's Finalists: Titan Drone And Comet Sample-Return
The two finalists for a future mission now have to prove their worthiness.
First-Ever Artificial Meteors Will Fall in Hiroshima
What if humans could take over meteor showers and make them perfect Instagram fodder?
First Comets Detected Outside Our Solar System
Exocomets are hard to spot, but they're definitely out there.
First Object Seen Visiting From Another Solar System
Scientists aren't sure what it is or where it came from, but they're positive it's pretty weird.
There's a New Comet in the Night Sky and You Can See It
You'll need a pair of good binoculars and a little patience.
NASA Finds Comets Hiding at Edge of Solar System
Understanding these comets is important, as they could have delivered icy materials to Earth—and may affect the planet in the future.
Watch NASA Live Stream on Asteroid Day
The space agency is hosting a 24-hour broadcast on what asteroids are and the risks they pose if they were to collide with Earth.
NASA Asteroid Hunter on Dangers of Near Earth Objects
Tomorrow is Asteroid Day—an annual event to highlight the risks asteroids pose to Earth.
Skull-Faced ‘Dead’ Comet Hurtling Past Earth on Halloween
The asteroid will pass relatively close to our planet.
Comet Impacts Could Have Helped Create Life on Earth
A new study is the first ever to show that impacts may create peptide chains.
Good Morning: Philae Space Probe Wakes Up on Comet
Probe "speaking" for first time since its botched landing on a comet in November.
Rosetta Lander's Battery Wanes and May Not Support Drilling
The washing machine-sized craft is now resting in the shadow of a cliff on the celestial body and appears to be surrounded by rocks, preventing sunlight from reaching the solar panels.
A Comet Up Close: News and Images From the Philae Probe
After a bumpy start, the Rosetta Mission lander is safely on the surface of 67P/Churyumov-Gerasimenko, collecting science data and images and sending them back to Earth.
Watch the Rosetta Mission’s Historic Comet Landing
The International Rosetta Mission made history Wednesday when a small robotic lander will attempt to touch down on a comet for the first time.