Complex Jupiter
How complex is Jupiter? NASA’s Juno mission to Jupiter is finding the Jovian giant to be more complicated than expected. Jupiter’s magnetic field has been discovered to be much different […]
How complex is Jupiter? NASA’s Juno mission to Jupiter is finding the Jovian giant to be more complicated than expected. Jupiter’s magnetic field has been discovered to be much different […]
These people are not in danger. What is coming down from the left is just the Moon, far in the distance. Luna appears so large here because she is being […]
Volcanic activity on the Big Island of Hawaii has increased since this Hawaiian night skyscape was recorded earlier this year. Recent vents and lava flows are about 30 kilometers to […]
Since the distance from Earth to Mars changes drastically as the planets orbit the Sun, Mars’ appearance changes dramaticaly. Mars is bright now, and it’s getting closer and brighter still […]
Why does asteroid 2015 BZ509 orbit the Sun the backwards? As shown in the featured animation, Jupiter’s trojan asteroids orbit the Sun in two major groups — one just ahead […]
How many of these can you find in today’s featured photograph: an aurora, airglow, one of the oldest impact craters on the Earth, snow and ice, stars, city lights, and […]
Does it rain on the Sun? Yes, although what falls is not water but extremely hot plasma. An example occurred in mid-July 2012 after an eruption on the Sun that […]
This stunning group of galaxies is far, far away, about 450 million light-years from planet Earth and cataloged as galaxy cluster Abell S0740. Dominated by the cluster’s large central elliptical […]
Named for a cosmic cloud hunter, Australian astronomer Colin Stanley Gum (1924-1960), The Gum Nebula is so large and close it is actually hard to see. In fact, we are […]
This galaxy is having a bad millennium. In fact, the past 100 million years haven’t been so good, and probably the next billion or so will be quite tumultuous. Visible […]