A fast-moving visitor is approaching our cosmic neighborhood. Dubbed 2019 SX5, this near-Earth object is about the size of the Great Pyramid of Giza.
Asteroids are space rocks thought to be the remains left over from the formation of the solar system. They range in size from tiny (the size of a car or so) to truly giant, with at least one - Ceres - gaining dwarf planet status. In our solar system, billions of asteroids are in the asteroid belt, a region around the sun between the orbits of Mars and Jupiter. Others stray from this region, and can potentially post an impact threat to the Earth. At least one interstellar asteroid, called 'Oumuamua, has passed through our solar system. Learn more about asteroids here.
When 'Oumuamua passed through our solar system in 2017, no one could figure out where the object came from. But astronomers think they've worked out how Comet 2I/Borisov got here.
Chilean officials are investigating a curious collection of burning objects that fell onto parts of the country last week.
This photo from the Hubble Space Telescope shows the spiral galaxy NGC 3717, a dusty swirl of stars about 60 million light-years away.
Astronomers are only now getting the hang of spotting interstellar objects, space debris that fled another solar system to swing through ours.
Asteroids and comets hidden in Jupiter's shadow may be in "safe mode" now, but a small change could send them flying towards Earth.
Once upon a time, a spacecraft made a dramatic quest to a distant land to bring back a treasure — and some science.
Earth will soon lose a key tool in the fight to spot potentially hazardous asteroids — and NASA has decided to fund a custom-built replacement.
Japan's asteroid-exploring spacecraft has practiced its last task before heading home — and it made a nifty image as well.
Consider the possibility that an asteroid may have transformed the picture of life on Earth — but forget the dinosaurs and the massive crater, and rewind an extra 400 million years.
By 2024, NASA plans to land the next two people on the moon, including the first woman who will ever walk on the lunar surface.
This weekend you can see live telescope views of an asteroid hurtling past Earth, thanks to astronomy broadcaster Slooh.
It's always nice to see old friends, and NASA's asteroid-monitoring team has a busy schedule this weekend (Sept. 13 and 14) doing just that.
The dinosaur-killing asteroid that hit the Earth around 66 million years ago probably generated a huge tsunami, according to new research.
Hundreds of orbiting comets and asteroids are thought to present some risk of colliding with Earth, but the threat is typically very small.
Current page: 1