News tagged with spitzer space telescope

Cosmology standard candle not so standard after all

(PhysOrg.com) -- Astronomers have turned up the first direct proof that "standard candles" used to illuminate the size of the universe, termed Cepheids, shrink in mass, making them not quite as standard as ...

Jan 12, 2011
5 / 5 (15) 43 | with audio podcast

Visiting an asteroid

Asteroids (or comets) whose orbits bring them close to the earth's orbit are called Near Earth Objects (NEOs). Some asteroids are old, dating from the origins of the solar system about four and one-half billion ...

Dec 17, 2010
4.5 / 5 (2) 6

Spitzer sees shrouded burst of stars

(PhysOrg.com) -- Astronomers using NASA's Spitzer Space Telescope have found a stunning burst of star formation that beams out as much infrared light as an entire galaxy. The collision of two spiral galaxies ...

Nov 23, 2010
4.9 / 5 (7) 15 | with audio podcast

Earth's dust tail points to alien planets

Did you know that the Earth has a dust tail? The Spitzer Space Telescope sailed right through it a few months ago, giving researchers a clear idea of what it looks like. That could be a big help to planet ...

Nov 15, 2010
4.8 / 5 (15) 0 | with audio podcast

The outbursts of Fornax

(PhysOrg.com) -- The galaxy Fornax A, at a distance of about 74 million light-years, is one of the nearest and brightest galaxies with giant radio lobes. These huge radio lobes -- they span a million light-years ...

Oct 01, 2010
5 / 5 (7) 4 | with audio podcast

Destroyer of worlds

(PhysOrg.com) -- Astronomers, in addition to discovering extrasolar planets (about 500 of them currently have known orbital parameters), have detected excess, warm infrared dust emission around many stars.

Sep 24, 2010
4.8 / 5 (16) 8 | with audio podcast

Spitzer Finds a Flavorful Mix of Asteroids

(PhysOrg.com) -- New research from NASA's Spitzer Space Telescope reveals that asteroids somewhat near Earth, termed near-Earth objects, are a mixed bunch, with a surprisingly wide array of compositions. Like ...

Sep 02, 2010
5 / 5 (8) 2 | with audio podcast

Image: A Galactic Spectacle

A beautiful new image of two colliding galaxies has been released by NASA's Great Observatories. The Antennae galaxies, located about 62 million light-years from Earth, are shown in this composite image from ...

Aug 05, 2010
4.7 / 5 (18) 1 | with audio podcast