As railways enter their third century of service, research must support their renaissance for more-sustainable travel that ...

September's planetary parade features five planets, three of them visible to the naked eye. Here’s when and where to look ...

That raises the possibility that the TRAPPIST-1e exoplanet could also have liquid water and therefore support life.

Astronomers are researching an Earth-like exoplanet that could contain water, according to NASA. The exoplanet, named ...

"The profile of the occultation was most consistent with it being a new satellite — a new moon — going around Quaoar." ...

Interstellar objects like 3I/ATLAS that have been captured in planet-forming disks around young stars could become the seeds ...

On the Red Planet, aurorae glow green because the charged particles collide with oxygen atoms high above Mars. They may be ...

If you were lucky 74,000 years ago, you would have survived the Toba supereruption, one of the largest catastrophic events ...

Fossil-fuel producers should be taxed to defray the cost of climate change, not be given even larger subsidies.

The Kuiper Belt is loosely defined as a doughnut-shaped swath of space beginning just beyond the orbit of Neptune and ...

Leonardo DiCaprio is championing Robert Redford's environmental activism in the wake of the movie star's death at age 89.

It is the morning after he became the fastest man in the world and, while hardly anonymous, there is certainly an ...