An asteroid or comet traveled from beyond the stars to make a close approach to Earth.
Asteroid Gamble
What are the odds that an asteroid impact will injure people?
More Than Meets The Eye
Asteroids and comets are far more similar than we once thought.
Asteroids And Quasicrystals
Quasicrystals are usually made in the lab, but they can also form in the asteroid belt.
Amateur Astronomers Capture Jupiter Impact
On Monday amateur astronomer John Mckeon captured an unusual flash on the limb of Jupiter while he was filming the planet through a telescope.
Spooky The Dead Comet
Today the object 2015 TB145 will make a “close” flyby of Earth. It’s been nicknamed Spooky due to its Halloween arrival date, and we’re already starting to learn a few things about it.
The Big Asteroid We Know Little About
Euphrosyne is the 5th most massive asteroid in the solar system. It has the highest density of any asteroid, so it’s only the 12th largest in terms of diameter. Despite its size, however, we actually don’t know that much about Euphrosyne.
Shores of Cosmic Oceans
Observations of a white dwarf finds evidence of a Ceres-sized asteroid comprised of one third water.
Falcon Rising
The Japanese spacecraft Hayabusa 2 has launched successfully, and is on its way to the asteroid 1999 JU3. The mission is the successor to the first Hayabusa mission, which landed on the asteroid 25143 Itokawa, and returned dust particles from the asteroid to Earth. This new mission will also strive to return samples to Earth, but it is also more ambitious. The …