Using a planet-hunting technique called gravitational microlensing, astronomers have detected an Earth-mass planet orbiting an ultracool dwarf 12,750 light-years...
An international team of astronomers have discovered a mysterious flash of X-rays using NASA’s Chandra X-ray Observatory, in the deepest X-ray image...
Astronomers have detected strange pulsations in the outer shell of a star called HAT-P-2, and their best guess is that a closely orbiting exoplanet causes...
A multinational team of astronomers has spotted a brown dwarf orbiting a K-type dwarf star approximately 16,300 light-years away. The object was discovered...
An international team of astronomers led by University of Nottingham scientist Christopher Conselice has performed an accurate census of the number of...
Using five space- and four ground-based telescopes, an international team of astronomers has found the most distant galaxy cluster to date.
This composite...
Using data from three of NASA’s space observatories — the Hubble Space Telescope, Chandra X-ray Observatory, and Spitzer Space Telescope, astronomers...
This infrared image from NASA’s Spitzer Space Telescope and the Two Micron All Sky Survey (2MASS) shows an emission nebula known as IC 417.
This infrared...
New observations of HD 80606b raise questions about origins of so-called hot Jupiters, a class of short-period gas giants with a mass similar to Jupiter’s,...
Using the NASA/ESA Hubble and NASA’s Spitzer space telescopes, astronomers have discovered five very luminous and massive stellar systems in the star-forming...
Astronomers using NASA’s flagship space telescopes, Kepler and Spitzer, have discovered a raging, giant storm on a cool Jupiter-size star called W1906+40.
The...
New observations of an unusual star called KIC 8462852 by NASA’s Spitzer Space Telescope suggest that its strange light signals are likely from extrasolar...
A multinational group of astronomers has discovered a distant cluster of galaxies with active star formation occurring in close proximity to the cluster’s...
Known by its catalog name, EGSY-2008532660 (EGSY8p7 for short), the galaxy is so far away that light from it now reaching ground-based telescopes shows...
NASA’s New Horizons will complete a close flyby of Pluto today at 7:49 a.m. EST (4:49 a.m. PST, 11:49 a.m. GMT, 1:49 p.m. CET, 5:19 p.m. IST, 9:49 p.m....