It seems that every few months or so comes a new discovery of a new “most distant galaxy ever found.”…
A combined image of the Helix Nebula from the Spitzer Space Telescope,the Galaxy Evolution Explorer (GALEX) and the Wide-field Infrared…
This graph illustrates the Cepheid period-luminosity relationship, which scientists use to calculate the size, age and expansion rate of the…
Image credit: X-ray: NASA/CXC/U.Mich./S.Oey, IR: NASA/JPL, Optical: ESO/WFI/2.2-m. Zoom by John Williams/TerraZoom using Zoomify When NASA combines images from different…
In the big image at left, the many galaxies of a massive cluster called MACS J1149+2223 dominate the scene. Gravitational…
Caption: This artist's concept shows what astronomers believe is an alien world just two-thirds the size of Earth. Image credit:…
Black holes powering distant quasars in the early Universe grazed on patches of gas or passing galaxies rather than glutting…
[/caption] The star 55 Cancri has been a source of joy and firsts for planet hunters. Not only was it…
[/caption] The Spitzer Space Telescope’s Infrared Array Camera (IRAC) is a cool camera, no matter what temperature in which it…
[/caption] A gorgeous new image from the tag team effort of the Herschel and Spitzer Space telescopes shows a rainbow…