Astronomy & Space news

A strange lonely planet found without a star

(Phys.org) —An international team of astronomers has discovered an exotic young planet that is not orbiting a star. This free-floating planet, dubbed PSO J318.5-22, is just 80 light-years away from Earth and has a mass ...

dateOct 09, 2013 in Astronomy
shares0 comments 73

How many moons does Mercury have? (Update)

Virtually every planet in the solar system has moons. Earth has the moon, Mars has Phobos and Deimos, and Jupiter and Saturn have 67 and 62 officially named moons, respectively. Heck, even the recently-demoted dwarf planet ...

dateJan 01, 2016 in Space Exploration
shares43 comments 4

Sun has binary partner, may affect the Earth

The ground-breaking and richly illustrated new book, Lost Star of Myth and Time, marries modern astronomical theory with ancient star lore to make a compelling case for the profound influence on our planet of a companion ...

dateSep 13, 2005 in
shares2 comments 0

Milky Way's origins are not what they seem

In a first-of-its-kind analysis, Northwestern University astrophysicists have discovered that, contrary to previously standard lore, up to half of the matter in our Milky Way galaxy may come from distant galaxies. As a result, ...

dateJul 27, 2017 in Astronomy
shares1317 comments 17