NASA’s Transiting Exoplanet Survey Satellite, or TESS, first flagged the object as a candidate. TESS watches for tiny dips in ...

The U.S. launched strikes on Iran early Tuesday, hours after President Donald Trump vowed to reinstate an American blockade ...

Revisiting actions from his first term that were reversed, President Donald Trump announced Monday that he will scale back ...

The $613B global space economy has become a compelling investment theme, as falling launch costs and accelerating satellite ...

In case you missed it, last week the ScienceAlert team shared their favorite science facts for you to use as conversation starters over the 4th of July weekend.

In a single sentence, Stephen Hawking manages to make you feel very small and very important at the same time. First he cuts us down to size.

Two newly confirmed "super-puff" planets are so diffuse that they are less dense than cotton candy, despite being about the size of Jupiter. Their rare orbital relationship and enormous, lightweight ...

Jupiter is the most massive planet in our solar system, a gas giant with a surface area of 23.71 billion square miles (61.42 billion square km), and also the heaviest of them all, coming in at 318 ...

This illustration depicts two giant planets that NASA's TESS space telescope discovered in the orbit of a Sun-like star, TOI-791. These planets, designated TOI-791 b and TOI-791 c, are roughly the ...

Mankind venturing into space ended up creating more questions than it answered, and one of the dilemmas is related to the planet sizes. Astronomers have found plenty of rocky super-Earths and plenty ...

Mycorrhizal fungi form underground networks that sustain plant life and help regulate Earth's climate by drawing carbon into soils. In a study published in Science, an international team of ...

The search for Earth 2.0 has begun in earnest. But there's a huge variety of exoplanets out there, so narrowing down the search to focus valuable telescope time on only the best candidates is critical ...