How is RXJ0528+2838 creating such shock waves? A recently discovered white dwarf star, the farther left of the two largest white spots, RXJ0528+2838, was found 730 light-years away from Earth. Most stars, when done fusing nuclei in their cores for energy, become red giant stars, the cores of which live on as faint dense white dwarfs that slowly cool down for the rest of time. White dwarfs are so dense that the only thing that stops them from collapsing further is quantum mechanics. In about 5 billion years, our Sun will become a white dwarf, too. The featured image, obtained with the European Southern Observatory’s Very Large Telescope, shows unexplained bow shocks around RXJ0528+2838, similar to the bow wave of water around a fast-moving ship. Astronomers don’t yet know what is powering these shocks, which have existed for at least 1,000 years. The red, green and blue colors represent trace amounts of glowing hydrogen, nitrogen and oxygen gas. Open Science: Browse 3,900+ codes in the Astrophysics Source Code Library

Landsat imagery is provided to the public as a joint project between NASA and USGS. A recent industry report on landsat satellite imagery data estimates that total annual value to the economy of $2.19 billion, far exceeding the multi-year total cost of building, launching, and managing Landsat satellites and sensors. The value is derived from consumer use of the data. The objective of this endpoint is to give you an easy to use taste of what Landsat imagery data can provide. There are more complicate APIs available if you want to build models on top of satellite imagery, apply machine-learning, or minimize clouds in your image.