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Evidence for a wandering black hole
Astronomers have found another possible rogue black hole, with about 100,000 times our sun's mass. It may have come from a small galaxy falling into a larger one.
October 8, 2016
A 3rd Saturn moon has subsurface ocean
Saturn's moons Titan and Enceladus are already known to hide oceans beneath their icy crusts. Researchers think there's an ocean deep in Saturn’s moon Dione as well.
October 6, 2016
A forming solar system with spiral arms
Astronomers are beginning to find spiral structure in forming solar systems, which was earlier predicted by theory.
October 3, 2016
Farewell, Rosetta comet mission
ESA's great Rosetta comet mission has come to an end. Details from its final hour, here.
September 30, 2016
Need details on SpaceX’s Mars mission?
Links, photos and more about Elon Musk's plan to make humans a multiplanetary species.
September 29, 2016
Mercury is tectonically active
New findings suggest Mercury is contracting and experiences ongoing "mercuryquakes."
September 29, 2016
Possible water plumes spotted on Europa
Water plumes erupting on Jupiter's moon Europa might make it easier to investigate whether life exists in the warm ocean believed to be deep beneath its icy surface.
September 27, 2016
Last hurrah of sunlike star
New Hubble image shows the demise of a sunlike star. Our own sun will also burn out and shroud itself with stellar debris, but not for another 5 billion years.
September 26, 2016
Cassini begins epic final year at Saturn
The spacecraft will plunge repeatedly between Saturn and its rings, and finally execute a headlong plummet into the body of Saturn itself.
September 26, 2016
Dwarf galaxies and dark matter update
Standard cosmology calls for many more dwarf galaxies than we see. A new computer simulation suggests we might not need so many dwarf galaxies, after all.
September 21, 2016
