A powerful telescope orbiting Mars gives us a new view of Earth and its moon, showing continent-size detail on Earth and the relative size of the moon.
A new ultra-deep X-ray image from Chandra X-ray Observatory has given astronomers their best look yet at the growth of black holes over billions of years, starting soon after the Big Bang.
As seen from Rio de Janeiro, Brazil on January 4, Earth reached its closest point to the sun just 40 minutes before the sun reached its highest daily position in Rio`s sky ...
If and when 2 stars in this binary system merge - as predicted - they'll increase in brightness 10 thousandfold, temporarily becoming a bright star in Earth's sky.
Notice the colors of Orion's stars in this photo that's slightly out-of-focus. Chirag Upreti wrote: "This is a 'bokeh effect,' and turns out it works really well on celestial bodies!"
Don't miss these gorgeous images from ESO's VISTA infrared survey telescope of the Orion Molecular Cloud complex, a place in space where new stars are forming.
Two ISS astronauts will perform the 1st spacewalk of 2017 on Friday, January 6. Live TV coverage starts at 5:30 a.m. EST (1030 UTC). The spacewalk begins at 7 a.m. EST (1200 UTC).