Mars Methane Mystery Deepens
The methane mystery on Mars just got stranger. New results from ESA and Roscosmos’ ExoMars Trace Gas Orbiter, has unexpectedly not detected methane in the atmosphere of Mars. This result […]
The methane mystery on Mars just got stranger. New results from ESA and Roscosmos’ ExoMars Trace Gas Orbiter, has unexpectedly not detected methane in the atmosphere of Mars. This result […]
Admire the beauty but fear the beast. The beauty is the aurora overhead, here taking the form of great green spiral, seen between picturesque clouds with the bright Moon to […]
This group is popular in the northern spring. Famous as the Leo Triplet, the three magnificent galaxies gather in one field of view. Crowd pleasers when imaged with even modest […]
One of the brightest galaxies in planet Earth’s sky is similar in size to our Milky Way Galaxy: big, beautiful Messier 81. Also known as NGC 3031 or Bode’s galaxy […]
Sit back and watch two black holes merge. Inspired by the first direct detection of gravitational waves in 2015, this simulation video plays in slow motion but would take about […]
Rigil Kentaurus is the bright star near the top of this broad southern skyscape. Of course it’s probably better known as Alpha Centauri, nearest star system to the Sun. Below […]
The Rosette Nebula, NGC 2237, is not the only cosmic cloud of gas and dust to evoke the imagery of flowers, but it is the most famous. At the edge […]
What does a black hole look like? To find out, radio telescopes from around the Earth coordinated observations of black holes with the largest known event horizons on the sky. […]
What’s that passing in front of the Sun? It looks like a moon, but it can’t be Earth’s Moon, because it isn’t round. It’s the Martian moon Phobos. The featured […]
Sometimes Saturn disappears. It doesn’t really go away, though, it just disappears from view when our Moon moves in front. Such a Saturnian eclipse was visible along a small swath […]