Reports from NOAA and elsewhere predict a chance of significant auroras, possibly observable as far south as the northern U.S. and maybe even farther south.
Fire in space doesn’t act like fire here on Earth. Untethered by gravity, flames in space curl themselves into tiny balls.
An otherworldly take take on an earthly trend, as Rosetta poses with its comet, 67P/Churyumov–Gerasimenko.
New works suggests most observed quasar phenomena depend on two things: how efficiently a central black hole is being fed and the astronomer’s viewing orientation.
European cosmologists and particle physicists come together to tweak an accepted model of how cold dark matter helps build galaxies in our universe.
The comet turns out to be a unique, multifaceted world. We now know comets can have cliffs, depressions, craters, boulders or even parallel grooves.
Tiny moons, no bigger than large mountains, may coalesce and collide with the densest part of the ring, creating luminous knots. But the moons don’t last long.
The definition for “supermoon” is so generous that there are typically 4-6 of them each year.
Asteroid passes near Earth on September 7. At its closest (18:18 UTC / 2:18 p.m. EDT), it’s about the same distance from Earth as weather and communications satellites.
That bright moon now in the evening sky is waxing toward a Harvest Moon on the night of September 8-9. A super Harvest Moon!