The Universe's Largest Galaxies Rotted From the Inside Out 

Littered across the cosmos are massive, dead galaxies, containing roughly half the stars in the known Universe. Much about these cosmic graveyards remains a mystery, but a study published yesterday in Science study offers additional insight into their death: They rotted from the inside out. » 4/20/15 5:43pm 4/20/15 5:43pm

Start Your Weekend With The Hubble Space Telescope's Planetarium Clips

You may not own your own private planetarium — or if you do, can we come over to your house? But you can still experience a journey through the wonders of space, thanks to four new "fulldome" planetarium clips, released by the Hubble Space Telescope. They're available in 4K and 8K resolution. » 2/28/15 1:44pm 2/28/15 1:44pm

Two Different Satellites Take Two Different Pictures of the Same Galaxy

What a difference a wavelength makes: On the left is the M82 Galaxy as seen in the visible light spectrum, captured by the Hubble Space Telescope — and the image we most associate with that galaxy. On the right is an x-ray image of the same galaxy, taken by NASA's Chandra X-ray Observatory. » 12/19/14 3:13am 12/19/14 3:13am