How Far Can You See in the Universe?

by Fraser Cain March 31, 2014

When you look into the night sky, you’re seeing tremendous distances away, even with your bare eyeball. But what’s the most distant object you can see with the unaided eye? And what if you get help with a pair of binoculars, a telescope, or even with the Hubble Space Telescope. Fraser Cain on Google+

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Keeping An Eye On Gaia

by Jason Major February 18, 2014

Gaia, ESA’s long-anticipated mission to map the stars of our galaxy (as well as do a slew of other cool science things) is now tucked comfortably in its position in orbit around Earth-Moon L2, a gravitationally stable spot in space 1.5 million km (932,000 miles) away. Once its mission begins in earnest, Gaia will watch about […]

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How Spitzer’s Focus Changed To Strange New Worlds

by Elizabeth Howell September 25, 2013

After 10 years in space — looking at so many galaxies and stars and other astronomy features — the Spitzer Space Telescope is being deployed for new work: searching for alien worlds. The telescope is designed to peer in infrared light (see these examples!), the wavelength in which heat is visible. When looking at infrared […]

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Double Vision: Scientists Spot An Elder ‘Twin’ To the Sun

by Elizabeth Howell August 28, 2013

If you want a picture of how you’ll look in 30 years, youngsters are told, look at your parents. The same principle is true of astronomy, where scientists compare similar stars in different age groups to see how they progress. We have a special interest in learning how the Sun will look in a few […]

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An Amazing Anniversary Image from the VLT

by Jason Major May 23, 2013

This Saturday will mark 15 years that the European Southern Observatory’s Very Large Telescope (VLT) first opened its eyes on the Universe, and ESO is celebrating its first-light anniversary with a beautiful and intriguing new image of the stellar nursery IC 2944, full of bright young stars and ink-black clouds of cold interstellar dust. This […]

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