2021年10月1日 The Central Milky Way from Lagoon to Pipe Image Credit & Copyright: Gabriel Rodrigues Santos Explanation: Dark markings and colorful clouds inhabit this stellar landscape. The deep and expansive view spans more than 30 full moons across crowded star fields toward the center of our Mi […]
2021年9月30日 The Hydrogen Clouds of M33 Image Credit & Copyright: Luca Fornaciari Explanation: Gorgeous spiral galaxy M33 seems to have more than its fair share of glowing hydrogen gas. A prominent member of the local group of galaxies, M33 is also known as the Triangulum Galaxy and lies a mere 3
2021年9月29日 Gigantic Jet Lightning from Puerto Rico Video Credit & Copyright: Frankie Lucena Explanation: Have you ever seen a gigantic jet? They are extremely rare but tremendously powerful. Gigantic jets are a type of lightning discharge documented only this century that occur between some thu
2021年9月28日 Night of the Perseids Video Credit & Copyright: Vikas Chander & Dorje Angchuk; Music: Tea Time via PremiumBeat Explanation: Have you ever experienced a meteor shower? To help capture the wonder, a video was taken during the peak of the recent Perseid meteor shower above the Indi
2021年9月27日 Unwrapped: Five Decade Old Lunar Selfie Image Credit: NASA, Apollo 11, Neil Armstrong; Processing: Michael Ranger Explanation: Here is one of the most famous pictures from the Moon — but digitally reversed. Apollo 11 landed on the moon in 1969 and soon thereafter many pictures were
2021年9月26日 The Red Square Nebula Image Credit & Copyright: Peter Tuthill (Sydney U.) & James Lloyd (Cornell U.) Explanation: How did a round star create this square nebula? No one is quite sure. The round star, known as MWC 922 and possibly part of a multiple star system, appears at the ce
2021年9月25日 The Bubble and the Star Cluster Image Credit & Copyright: Lorand Fenyes Explanation: To the eye, this cosmic composition nicely balances the Bubble Nebula at the right with open star cluster M52. The pair would be lopsided on other scales, though. Embedded in a complex of interstella
2021年9月24日 Perseid Outburst at Westmeath Lookout Image Credit & Copyright: Pierre Martin Explanation: This year an outburst of Perseid meteors surprised skywatchers. The reliable meteor shower’s peak was predicted for the night of August 12/13. But persistent visual observers in North Ame
2021年9月23日 Harvest Moon Trail Image Credit & Copyright: Mike Cohea Explanation: Famed in festival, story, and song the best known full moon is the Harvest Moon. For northern hemisphere dwellers that’s a traditional name of the full moon nearest the September equinox. Seen from Saunderstow
2021年9月22日 Equinox on a Spinning Earth Image Credit: Meteosat 9, NASA, earthobservatory, Robert Simmon Explanation: When does the line between night and day become vertical? Today. Today is an equinox on planet Earth, a time of year when day and night are most nearly equal. At an equinox, the Earth&
