What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy clusters, and dark matter.

Earlier this month astronomers were thrilled to discover only the third known interstellar object ever seen in our solar system. Now dubbed 3I/ATLAS, the suspected comet has just zoomed past the orbit ...

Scientists have discovered that the 3I/ATLAS — a Manhattan-sized interstellar object that potentially has alien tech — is ...

Scientists have blown stargazers’ collective minds after discovering a massive dark object in space that’s completely ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...

Harvard astornomer Avi Loeb suggests interstellar object 3I/ATLAS could've sent off the Wow! Signal back in 1977.

Yale astronomer Pieter van Dokkum and a team of researchers have discovered an object in space they call the "Infinity" galaxy—two recently-collided galaxies that, together, look like the symbol for ...

An enormous asteroid is approaching Earth at 24,136 miles per hour—and will be at its closest to us in two days' time. The space rock—dubbed "2025 FA22"—is 520 feet across. On a cosmic scale, it will ...

About five years from now, a modified Dragon spacecraft will begin to fire its Draco thrusters, pushing the International Space Station out of its orbit and sending the largest object humans have ...