Astronomy & Space - Astronomy news

Is the universe finite or infinite?

Two possiblities exist: either the Universe is finite and has a size, or it's infinite and goes on forever. Both possibilities have mind-bending implications.

13 hours ago
4.6 / 5 (14) 17

Dark matter is darker than once thought

This panel of images represents a study of 72 colliding galaxy clusters conducted by a team of astronomers using NASA's Chandra X-ray Observatory and Hubble Space Telescope. The research sets new limits on ...

16 hours ago
3.6 / 5 (5) 6

'Teapot' nova begins to wane

A star, or nova, has appeared in the constellation of Sagittarius and, even though it is now waning, it is still bright enough to be visible in the sky over Perth through binoculars or a telescope.

15 hours ago
5 / 5 (3) 0

Chemical fingerprints of ancient supernovae found

A Carnegie-based search of nearby galaxies for their oldest stars has uncovered two stars in the Sculptor dwarf galaxy that were born shortly after the galaxy formed, approximately 13 billion years ago. The ...

Mar 23, 2015
5 / 5 (6) 0

Measuring galaxy evolution with globular clusters

Globular clusters are gravitationally bound ensembles of stars, as many as a million stars in some cases, grouped in roughly spherical clusters with diameters as small as only tens of light-years. Globular ...

Mar 23, 2015
4.3 / 5 (6) 0