Astronomers had hoped to observe an atmosphere on one of the seven planets known to orbit Trappist-1, a red dwarf star. A new ...

When an unidentified interstellar object several miles wide comes hurtling through our solar system at 37 miles a second, the ...

If Earth needs to borrow a cup of sugar, it's comforting to know that there may be a convenient, possibly habitable, world orbiting Alpha Centauri only 4.34 light years away – at least, if the ...

The solar system’s smallest planet is just now becoming visible before dawn. Bright Jupiter and Venus point the way.

IF summer holiday boredom is setting in, the answer could be written in the stars. Astronomy is growing in popularity across the UK, with retailer Argos reporting sales of telescopes and ...

The recent discovery of a potential gas giant circling the nearby star Alpha Centauri A has led to speculation that it may be ...

Boy, how the world has changed over the past 10 years, but perhaps not as profoundly as our understanding of another, more ...

From Aug. 17–21, a spectacular “planet parade” (also called an alignment) features the moon and six planets. Here’s when and ...