News tagged with interstellar medium

The Sun's ripple effect

A new study co-authored by Boston University astronomers indicates that a bow shock (a dynamic boundary between the Sun's heliosphere and the interstellar medium) is highly likely. These findings challenge ...

Jul 30, 2013 5 / 5 (11) 10 | with audio podcast

Water vapor in space

(PhysOrg.com) -- Water is a critical molecule for human life, and, because it is abundant in the interstellar medium, it also plays an important role in the life of molecular clouds and the stars and planets ...

Feb 04, 2011 4.8 / 5 (11) 0 | with audio podcast

Betelgeuse braces for a collision

(Phys.org)—Multiple arcs are revealed around Betelgeuse, the nearest red supergiant star to Earth, in this new image from ESA's Herschel space observatory. The star and its arc-shaped shields could collide ...

Jan 22, 2013 3.8 / 5 (13) 15 | with audio podcast

Building a new planet

(PhysOrg.com) -- Astronomers over the past decade have made remarkable progress in the study of extrasolar planets; over 500 distant worlds are now confirmed. Meanwhile, as this active research community continues ...

Jan 04, 2011 4.6 / 5 (10) 7 | with audio podcast

How old are the first planets?

To build a planet you need lots of rubble and that means lots of heavy elements – stuff more massive than atoms of hydrogen and helium. The elemental composition of the collapsing nebula that gave birth ...

Aug 31, 2012 4.8 / 5 (9) 10 | with audio podcast