A group of radio telescopes in the Chilean desert was aimed at a young star system 400 light years away when it detected something unusual: a cloud of debris chasing a planet along the same orbit. The debris could be a planet in the midst of being born or the remains of one that already exists, making this the first…
Jupiter is a superstar in our solar system. It’s the biggest, it’s wonderfully gassy, and it now has the most documented moons, clocking in at 92 natural satellites.
Astronomical phenomena tend to occur over timespans that dwarf our human scale—a galaxy changes over millions and billions of years, not decades.
The Juno spacecraft did not take all the images it was supposed to during a flyby of Jupiter on January 22. NASA says it will look into the problem.