What too much artificial light steals from our night skies
Advocates emphasize that, compared to many other types of pollution plaguing our planet, addressing excessive lighting is relatively straightforward.
NASA is returning to Venus to learn how it became a hot poisonous wasteland
Two new NASA missions – VERITAS and DAVINCI+ – are headed to Venus. The missions will use radar and a probe to learn about Earth's hard-to-study and potentially prophetic neighbor.
WATCH: How to see the red blood supermoon lunar eclipse coming early Wednesday
Also known as the super flower blood moon (so named because May's full moon is sometimes called the flower moon), the phenomenon combined several lunar milestones that resulted in a full moon that looks bigger than usual, turns red, and…
Primordial black holes could explain dark matter, galaxy growth and more
A half-century-old, still-disputed idea about dense cosmic objects from the dawn of time could solve longstanding mysteries about the universe.
Black holes are getting stranger — even to astronomers. Scientists reported Wednesday they detected the merger of two smaller black holes into the first intermediate sized black hole ever observed. …
For two decades, astronomers have argued over how much carbon, nitrogen and especially oxygen lie within our closest star — a dispute with implications for the entire universe.
The comet, known as C/2019 Y4 (ATLAS), has shown signs of falling apart, and is no longer expected to treat stargazers in the Northern Hemisphere to a spectacular show.
It turns out our Milky Way galaxy isn't the flat spiral disk we thought it was before -- dark matter or collisions with other galaxies could have twisted it out of shape.
Despite decades of intense study, there is no general consensus on how most meteorites formed. An astronomer and a geologist offer a new theory of what happened during the solar system's birth to create these valuable relics of our past.
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