Long before humans walked the Earth, your solar system had a brush with two blazing blue stars that passed surprisingly close ...

Short-lived radioisotopes such as aluminum-26 influenced early solar system heat, water retention and the formation of Earth-like rocky planets, according to meteorite analyses and models.

Leonardo Testi and team investigate the initial conditions for planet formation in this special astronomy focus ...

If scientists are able to inspect it in person, and they find that Mars was indeed once alive with microbes, we would know ...

"We're not saying, and we can't say, that there's no life in Europa. What we're saying is that it's a harder proposition, ...

Mars, often depicted as a barren red planet, is far from lifeless. With its thin atmosphere and dusty surface, it is an ...

Every planet in the solar system leans, some gently, some dramatically, and that tilt quietly shapes everything from our ...

NASA has selected two Colorado companies to help develop a future NASA space telescope that will look for signs of life on other planets. The flagship project, called the Habitable Worlds Observatory, ...

Is solar worth it in Australia in 2026? Despite rebate cuts, solar remains the best way to slash energy bills. Learn how to ...

Over half of the exhaust methane from lunar spacecraft could end up contaminating areas of the moon that might otherwise ...

Eric and Wendy Schmidt are backing a start-up-like approach to building a giant space telescope and powerful ground ...

Project Jupiter is one part of Stargate, an enormous high-tech enterprise. But it hasn’t been smooth sailing for developers, ...