Thursday, November 30, 2017
Wednesday, November 29, 2017
Tuesday, November 28, 2017
Monday, November 27, 2017
Sunday, November 26, 2017
Saturday, November 25, 2017
Friday, November 24, 2017
Thursday, November 23, 2017
Today's Astronomy Picture of the Day brings us to the jewels that make up the Belt of Orion: Alnitak, Alnilam and Mintaka.
What else can you spot in this image? The Horsehead? Pillars of Creation? Bubbles?
Wednesday, November 22, 2017
Today's Astronomy Picture of the Day is an artist depiction of interstellar visitor Oumuamua. Some jokingly suggested it may be a derelict interstellar visitor. Paging Dr. Clarke...
Tuesday, November 21, 2017
Monday, November 20, 2017
Today's Astronomy Picture of the Day is a "selfie" courtesy of one of the two working rovers on the surface of Mars, the Mars Science Laboratory Curiosity, working it's way to Mount Sharp (Aeolis Mons).
Sunday, November 19, 2017
Saturday, November 18, 2017
Friday, November 17, 2017
Thursday, November 16, 2017
Wednesday, November 15, 2017
Today's Astronomy Picture of the Day shows NGC 7789, discovered by Caroline Lucretia Herschel. Caroline is often overshadowed by her brother, which is a shame, as she not only was a fine observational astronomer, but carried the burden of the household in many ways. Could William functioned as he did without her help?
Tuesday, November 14, 2017
Today's Astronomy Picture of the Day shows one of our familiar (northern hemisphere) winter sights: Messier 45), but gives us a deeper look than our naked (or assisted) eye can see: the Pleiades with the dust and debris that we normally miss.
Many a night I saw the Pleiads, rising thro' the mellow shade,
Glitter like a swarm of fire-flies tangled in a silver braid.
(Alfred, Lord Tennyson, Locksley Hall)
Monday, November 13, 2017
Today's Astronomy Picture of the Day shows Comet 96P/Machholz as it dives towards our home star. There are swarms of comets who do the suicide run (for a icy body, making a close approach to a fusion furnace should not be a life goal!) like this yearly. The venerable SOHO spacecraft helps us to study these cosmic Icarus's.
Sunday, November 12, 2017
Saturday, November 11, 2017
Today's Astronomy Picture of the Day sheds a new light on an familiar face: our Moon, color enhanced in order to highlight mineral deposits. Such maps may lead us to target areas of interest for future exploration (and actual use).
Friday, November 10, 2017
Today's Astronomy Picture of the Day show the remnants of a star's final fury: after effects of a supernova that stretch across the constellation of Cygnus. Williamina Fleming discovered the nebula, so it is tagged as Williamina's Triangular Wisp.
Thursday, November 9, 2017
Wednesday, November 8, 2017
Today's Astronomy Picture of the Day shows NGC 2261, Hubble's Variable Nebula, found near Monoceros. Even relatively modest "amateur" instruments can be used to track the changes that one can see in this astronomical object.
Tuesday, November 7, 2017
Monday, November 6, 2017
Today's Astronomy Picture of the Day shows activity on the surface of Comet 67P/Churyumov-Gerasimenko as imaged by the ESA's Rosetta spacecraft which explored that comet for an extended period.
Sunday, November 5, 2017
Saturday, November 4, 2017
Today's Astronomy Picture of the Day shows the beautiful globular cluster Messier 5, between Libra and Serpens.
“He who cannot see gravity at work here has no soul.” (Richard Feynman)
Friday, November 3, 2017
Today's Astronomy Picture of the Day shows a stranger to our parts. A/2017 U1 was first thought to be a comet or asteroid from the far reaches of our solar system. Further analysis showed it to be the first (known) interstellar visitor. Remember: Ramans do everything in threes.
Thursday, November 2, 2017
Today's Astronomy Picture of the Day features a rich field of distant objects. While centered on a star (HD 14771), and featuring a galaxy (NGC 891), this field also contains a galaxy cluster (Abell 347). How many galaxies can you spot?
Wednesday, November 1, 2017
Today's Astronomy Picture of the Day is a deep dive into NGC 2359 (found in Canis Major). Popularly known as "Thor's Helmet", we have a "tiny" bubble of gas being blown by the energetic "breath" of a young star.