A 1st quarter moon is high up at sunset. You see it half-illuminated, like half a pie. Really, you’re seeing half the moon’s day side.
September 16, 2018 1st quarter moon - in a hazy blue sky, before sunset - over Toronto, via Steven A. Sweet of Lunar 101 Moon Book.
Details on the annual Orionid meteor shower. How and when to watch. In 2018, the peak morning is probably October 21. But start watching now, before dawn!
Joe Randall created this composite shot of the Orionid meteor shower from images taken on October 21, 2014. Thanks, Joe!
And, more to the point, are any asteroids that might be hidden in the Taurid meteor stream potentially hazardous to Earth?
Another cool shot of a Taurid fireball, posted this morning (November 11) at EarthSky Photos on G+
by Bill Allen. Thanks, Bill! By all reports, this shower has been amazing in 2015.
In 1670, skywatchers saw a nova, a star that appeared where none had been before. Today’s astronomers have learned it was a collision between an aging white dwarf star, and less massive brown dwarf.
ALMA image of CK Vulpeculae. New research indicates that this hourglass-like object is the result of the collision of a brown dwarf and a white dwarf.
Credit: ALMA (ESO/NAOJ/NRAO)/S. P. S. Eyres https://public.nrao.edu/news/2018-alma-dwarf-nova/
How did life on Earth begin? A new technology, called Planet Simulator, might finally help solve the mystery.
Most scientists think that life on Earth originated in "warm little ponds" like hydrothermal springs. New technology and research will now investigate just how that process may have occurred - or refute it. Image via National Park Service/Diane Renkin.
In the path of totality of the August 2017 total solar eclipse, bees stopped flying, says a study. “It was like ‘lights out’ at summer camp.”
The South Taurid meteor shower rarely produces more than 5 meteors per hour, but it’s been known to produce fireballs. The shower is long-running. Watch for these meteors in October and November.
South Taurid meteor. Note the Pleiades star cluster above the meteor, and the bright star Aldebaran roughly midway between the Pleiades and the meteor. Image credit: Rocy Raybell
Learn to watch ISS moving silently and steadily across your night sky, and think of the 3 astronauts currently on board.
A composite photograph of an International Space Station flyover, taken from the UK. Image via Dave Walker.
Astronomers thought Alpha Centauri was the closest star to Earth. Then they found a smaller, fainter star that’s even closer. They named it Proxima, which means “nearest.”
Our sun's closest neighbors among the stars, including Barnard's Star. Image via NASA PhotoJournal