Hubble image of close passage of Comet Siding Spring near Mars. The comet passed Mars at about a third the distance between Earth and the moon on October 19.
On October 24, 1946, a movie camera on board the V-2 rocket captured the first photo of Earth from outer space.
Astronomers have observed signals from a highly magnetized neutron star, indicating starquakes that set the neutron star ringing like a bell.
Get out your 3D glasses and watch a flyover of the weird landforms on Mars know as chaotic terrain.
Less solar activity indicates a weaker magnetic field on the sun. A weak field lets cosmic rays into the solar system, posing a radiation hazard for astronauts.
Three eclipses in one calendar month are rare. Three eclipses in one lunar month are more common. From 2000-2050, it happens 14 times.
A total solar eclipse of August 22, 1142 may have coincided with the birth of the Iroquois Confederacy, oldest democracy in North America and possibly on Earth.
A team of astronomers has created the first three-dimensional map of the adolescent universe, just 3 billion years after the Big Bang.