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Astronomy Picture Of the Day (APOD)
APOD: 2025 May 12 B Gaia Reconstructs a Side View of our Galaxy
12.05.2025
What does our Milky Way Galaxy look like from the side? Because we are on the inside, humanity canBt get an actual picture. Recently, however, just such a map has been made using location data for over a billion stars from ESABs Gaia mission.
APOD: 2025 May 11 B The Surface of Venus from Venera 14
11.05.2025
If you could stand on Venus -- what would you see? Pictured is the view from Venera 14, a robotic Soviet lander which parachuted and air-braked down through the thick Venusian atmosphere in March of 1982.
Yogi and Friends in 3D
10.05.2025
This picture from July 1997 shows a ramp from the Pathfinder lander, the Sojourner robot rover, deflated landing airbags, a couch, Barnacle Bill and Yogi Rock appear together in this 3D stereo view of the surface of Mars. Barnacle Bill is the rock just left of the house cat-sized, solar-paneled Sojourner.
APOD: 2025 May 9 B IXPE Explores a Black Hole Jet
9.05.2025
How do black holes create X-rays? Answering this long-standing question was significantly advanced recently with data taken by NASABs IXPE satellite. X-rays cannot exit a black hole, but they can be created in the energetic environment nearby, in particular by a jet of particles moving outward.
M1: The Incredible Expanding Crab
8.05.2025
Cataloged as M1, the Crab Nebula is the first on Charles Messier's famous list of things which are not comets. In fact, the Crab Nebula is now known to be a supernova remnant, an expanding cloud of debris from the death explosion of a massive star.
APOD: 2025 May 7 B Galaxy Wars: M81 versus M82
7.05.2025
In the upper left corner, surrounded by blue arms and dotted with red nebulas, is spiral galaxy M81. In the lower right corner, marked by a light central line and surrounded by red glowing gas, is irregular galaxy M82.
APOD: 2025 May 6 B The Doubly Warped World of Binary Black Holes
6.05.2025
If one black hole looks strange, what about two? Light rays from accretion disks around a pair of orbiting supermassive black holes make their way through the warped space-time produced by extreme gravity in this detailed computer visualization.
APOD: 2025 May 5 B Planet Lines Across Water
5.05.2025
WhatBs causing those lines? Objects in the sky sometimes appear reflected as lines across water B but why? If the waterBs surface is smooth, then reflected objects would appear similarly -- as spots.
APOD: 2025 May 4 B Spin up of a Supermassive Black Hole
4.05.2025
How fast can a black hole spin? If any object made of regular matter spins too fast -- it breaks apart. But a black hole might not be able to break apart -- and its maximum spin rate is really unknown.
Titan: Moon over Saturn
3.05.2025
Like Earth's moon, Saturn's largest moon Titan is locked in synchronous rotation with its planet. This mosaic of images recorded by the Cassini spacecraft in May of 2012 shows its anti-Saturn side, the side always facing away from the ringed gas giant.
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