When it comes to celestial events, 2025 is getting off to a star-packed — or mostly planet- and comet-studded — start, including an upcoming welcome to a first-time visitor to our solar system.

Mars will appear near the moon on Feb. 9. While scanning the sky for planets, don’t miss the constellation Orion the Hunter. The star that marks the upper left shoulder is called Betelgeuse.

The so-called 'planetesimal belts' are filled with tiny millimeter-sized particles created by collisions between comets.

You'll be able to easily see four planets in the February evening sky ... thanks to its proximity to the Twin Stars of Gemini, Pollux and Castor. Finally, during the last week of February ...

The remaining dust and gas form a protoplanetary disk that encircles the new star, which slowly accretes to form systems of planets. For the past decade, astronomers have relied on the Atacama ...

A planet that may support alien life has been discovered less than 20 light-years from Earth. The "promising" super-Earth - called HD 20794 d - may house water, according to the international research ...

Planet A explores the shift towards an eco-friendly world and challenges the way we are dealing with climate change. We're destroying our environment at an alarming rate. But it doesn't need to be ...

As it circled it, it snapped these incredible images of one of the Solar System's most mysterious planets. BepiColombo ... the MTM that kind of looks like a Star Trek starship.

A suspected planet that appears well-suited to life has had its existence confirmed – and it’s very much in our neighborhood, galactically speaking. Unfortunately, the planet HD 20794 d does ...

From planets and constellations, to eclipses and the Aurora Borealis, here's what to look for in the sky this spring ...