Leo and Ralph, by Peter Carnavas, is a superb new novel about a boy moving home and (possibly) losing his extraterrestrial friend ...

Hunting for alien civilizations isn't a matter of just waiting around for them to show up; it's the business of combing ...

Using an observatory located deep beneath the Mediterranean Sea, an international team has detected an ultra-high-energy ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

A cosmic filament, 3 million light-years long, has been directly imaged for the first time — offering a new glimpse into the ...

In this video narrated by Elizabeth Landau, hear how NASA’s SPHEREx mission will map the entire sky in over 100 infrared colors, combining a wide field of view with spectral imaging to explore the ...

YR4 has a 2% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see how much of a risk the space rock poses.

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RCW 38 lies approximately 5,500 light-years away in the constellation Vela. Unlike many star clusters that appear as simple ...

A unique dataset of Type Ia Supernovae being released today could change how cosmologists measure the expansion history of ...

Astrophysicists have unearthed a surprising diversity in the ways in which white dwarf stars explode in deep space after ...