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Astronomers Solve Mystery of Enormous Space Blob

Lyman-alpha blob (LAB-1) pictured at the center is one of the largest known objects in the universe. Because of its distance, the blob’s UV emissions get stretched on their journey through space and appear green to our telescopes. Image: ESO/M. Hayes

Crimson Flares. NGC 6188 is an emission nebula about 4000 ly away in the constellation Ara. Within NGC 6188 is an open cluster of bright young stars (the Ara OB1 association) known as NGC 6193. In the bottom left hand corner is a small emission nebula NGC 6164-5. The star in the middle of the nebula is believed to have created the gas cloud and causes it to glow by virtue of the UV light it emits. That gas was likely thrown off from the star, possibly by its fast rotation.

South of Antares, in the tail of the nebula-rich constellation Scorpius, lies emission nebula IC 4628. At an estimated distance of 6,000 light-years, the region shown is about 250 light-years across, spanning an area equivalent to four full moons on the sky.

Galaxy M101 After Supernova. That same galaxy in a NASA Swift image is shown, with bars indicating the location of supernova SN 2011fe. The Swift image is a false-color image with UV emission blue and optical emission red.

Crimson Flares. NGC 6188 is an emission nebula about 4000 ly away in the constellation Ara. Within NGC 6188 is an open cluster of bright young stars (the Ara OB1 association) known as NGC 6193. In the bottom left hand corner is a small emission nebula NGC 6164-5. The star in the middle of the nebula is believed to have created the gas cloud and causes it to glow by virtue of the UV light it emits. That gas was likely thrown off from the star, possibly by its fast rotation. Nebula of Stars…

Crimson Flares. NGC 6188 is an emission nebula about 4000 ly away in the constellation Ara. Within NGC 6188 is an open cluster of bright young stars (the Ara OB1 association) known as NGC 6193. In the bottom left hand corner is a small emission nebula NGC 6164-5. The star in the middle of the nebula is believed to have created the gas cloud and causes it to glow by virtue of the UV light it emits. That gas was likely thrown off from the star, possibly by its fast rotation. Nebula of Stars…

X-rays stream off the Sun in this image. The NuSTAR data, seen in green and blue, reveal solar high-energy emission (green shows energies between 2 and 3 kiloelectron volts, and blue shows energies between 3 and 5 kiloelectron volts). The high-energy X-rays come from gas heated to above 3 million degrees. The red channel represents UV light captured by SDO at wavelengths of 171 angstroms, and shows the presence of lower-temperature material in the solar atmosphere at 1 million degrees. This…

Death Star Galaxy! This composite image shows the jet from a black hole at the center of a galaxy striking the edge of another galaxy, it is the first time such an interaction is detected. In the picture, you have ncombinado data from several wavelengths. X-rays from Chandra (purple), optical and ultraviolet data (UV) Hubble (red and orange), and radio emission from the Very Large Array (VLA) and MERLIN (blue) show how the jet the main galaxy on the upper left of surprises his companion…

Space Photo of the Day 2013

Black Hole Fires at Neighbor This composite image shows the jet from a black hole at the center of a galaxy striking the edge of another galaxy, the first time such an interaction has been found. In the image, data from several wavelengths have been combined.

Hubble's view of the Carina Nebula shows star birth in a new level of detail. The fantasy-like landscape of the nebula is sculpted by the action of outflowing winds and scorching ultraviolet radiation from the monster stars that inhabit this inferno. In the process, these stars are shredding the surrounding material that is the last vestige of the giant cloud from which the stars were born. The immense nebula is an estimated 7,500 light-years away in the southern constellation Carina the…