Images of interstellar comet 3I/ATLAS snapped during the September 7 total lunar eclipse seem to suggest that the latest visitor to the Solar System may be turning green.

On the side of the Sun facing Earth, a giant coronal hole appeared in the shape of an enormous love heart, many times the ...

The world’s energy landscape is at a tipping point. Environmental necessities, economic opportunities, and geopolitics are ...

Astronomers predict it will pass relatively close to four planets (but not Earth) and the Sun, then continue its cosmic journey. A Harvard professor made headlines theorizing our visitor is a ...

The bottom half of the world, known as the Southern Hemisphere, is about to be treated to a partial solar eclipse that won't be visible in the US.

NASA Glenn is leading America's urgent push to beat China in establishing the first lunar power plant by 2030, with ...

Tax breaks for some home upgrades, solar panels and electric vehicles end soon, some as early as Sept. 30. Homeowners and ...

Several well-known meteorite discoveries are still a mystery. Avi Loeb’s interpretation of some meteorite debris possibly being of alien origin is controversial, because peer‑reviewed analyses point ...

Much as we may treasure and proclaim our independence, we actually live in a protective bubble called the heliosphere.

The news: NASA's Perseverance rover had found potential signs of ancient microbial life on Mars. The discovery represents ...

In our Ask the Editor round-up, Joy Taylor, The Kiplinger Tax Letter Editor, answers questions on expiring tax credits for ...

RWE Clean Energy secured conditional approval for a solar installation in Swatara Township but must either challenge Bethel ...