Asteroids are small rocky bodies that orbit the Sun.
Tiny fish remains were time capsules of climate change.
The 2015 BZ509 asteroid orbits the sun in the opposite direction to everything else in the solar system.
In order to identify what 2004 EW95 was made of, the team studied the light reflected off of it.
The new experiment relied on a cannon that can shoot marbles at speeds of more than 11,000 miles per hour.
The asteroid is up to five times the size of the space rock that exploded over Chelyabinsk in 2013.
The spacecraft designed for the mission is called HAMMER.
You might be able to catch a glimpse from your own backyard.
There are two asteroids flying past Earth within the next few days, but what does that even mean?
The haywire spinning will continue for billions of years.
The force of the impact may have triggered a surge in volcanic activity.
It may be larger than the Chelyabinsk rock which injured nearly 1,500 people in Russia.
There could be thousands of rocks from distant solar systems just killing time in our neighborhood.
"The telescope is kind of like a great big flashlight where you're turning it on and turning it off."
Events like these occur dozens of times each year. Why was this one special?
The meteorites may have come from a potentially habitable asteroid.
They expected it to be like a bunch of other meteorites they'd seen—and stumbled on a puzzle instead.
Thanks to incredible scientific technology, we're spotting more and more asteroids every year.
It’s dark, it looks like a skull and it made its last close approach on Halloween 2015. What is the universe trying to tell us?
This may be how life on Earth began.
"We cannot discount the possibility that it really is a spacecraft."