In the distant reaches of the solar system are many icy objects that resemble snowmen. Now, a new study reveals the simple ...

In late 2025 a mysterious comet flew between the orbits of Earth and Mars and reached a speed of more than 150,000 miles per ...

Space scientists have revealed a new image of the mysterious space rock that passed through our solar system. Researchers said the picture shows the interstellar Comet 3I/ATLAS, suggested to be a ...

Moons may seem like quiet companions to the planets, but many of them are worlds every bit as fascinating as the planets themselves. Some are covered in oceans, some erupt with lava, and others hide ...

A recent image shared by the European Space Agency's Jupiter Icy Moons Explorer (Juice) reveals a close-up view of the ...

“Comet 3I/ATLAS was full-on erupting into space in December 2025, after its close flyby of the Sun, causing it to significantly brighten,” said Johns Hopkins astronomer Carey Lisse, lead author of a ...

The universe is supposed to look the same no matter where you stand. That idea, known as the cosmological principle, sits at the heart of modern astrophysics. It says matter spreads out evenly when ...

Scientists at the European Space Agency used a laser to communicate with a spacecraft 165 million miles (265 million kilometers) away in deep space for the first time, marking a major step forward in ...

There have been plenty of attempts to resolve the "Hubble Tension" in cosmology. This feature describes how one of the most important variables in cosmology, the expansion of the universe, takes on ...

On February 23, 1990, NASA's Pioneer 11 spacecraft left the solar system! This was the second spacecraft to travel beyond the ...