When tiny dwarf galaxies age and begin to erode away, they can transform into an even smaller and more dense shape, called an ultra-compact dwarf galaxy.
The European Space Agency has released the first five full-color images taken by Euclid, a space telescope launched earlier this year to probe dark matter.
A new image from Hubble shows Jupiter in a whole new way, highlighting the Great Red Spot - an enormous storm larger than the width of the entire Earth.
NASA's Lucy spacecraft made its first asteroid flyby. But when it returned the images it took, there was a surprise in store: a second, even smaller asteroid.
Researchers working on samples collected by Apollo 17 astronauts have performed an analysis that suggests the moon may be as much as 4.46 billion years old.
A publicly available digital atlas of nearby galaxies was recently updated and now includes almost 400,000 galaxies located within our cosmic neighborhood.
The Lucy spacecraft is on its way to the orbit of Jupiter to study the Trojan asteroids there. But first it will make a flyby of an asteroid called Dinkinesh.
This week saw the release of a treasure trove of data from ESA's Gaia mission, a space-based observatory that is mapping out the Milky Way in three dimensions.
The launch of NASA's Psyche mission to visit a metal asteroid will include an extra bonus, as the spacecraft will carry a test of a new communications system.
After postponing from its original launch date due to bad weather, the conditions are now looking favorable for NASA to launch its Psyche mission today.
Now that NASA has wrangled a chunk of asteroid back to Earth, a team of scientists is busy photographing, crushing, and even shooting lasers at the dust.
This week, skywatchers across the U.S. will have the chance to see an annular solar eclipse, also known as a ring of fire eclipse. Here's how to watch.
Two astronauts will perform a spacewalk from the International Space Station, collecting samples from the station's exterior to use in scientific research.
The Hubble Space Telescope recently observed something strange: an extremely bright, extremely fast flash of light that popped up in the middle of nowhere.
