Before NASA’s Spitzer Space Telescope ran out of liquid helium coolant in 2009, it captured stunning infrared views of targets ranging from galaxies to nebulae and everything in between. During the so-called “cold phase” of its extended mission, the observatory studied the Perseus Molecular Cloud on multiple occasions, capturing spectacular views of vast dust clouds with embedded star clusters. Some of those clusters pose a mystery: they seem to contain young, middle-age and old stars in close proximity. Older stars tend to move apart as time passes and finding such closely-packed suns in a mixture of ages is out of step with current ideas about how stars form. Says astrophysicist Luisa Rebull: “This region is telling astronomers that there’s something we don’t understand about star formation. It’s one of my favorite regions to study.”
A spectacular new image of the Milky Way has been released to mark the completion of the APEX Telescope Large Area Survey of the Galaxy (ATLASGAL). The APEX telescope in Chile has mapped the full area of the galactic plane visible from the Southern Hemisphere for the first time at submillimetre wavelengths — between infrared light and radio waves.
Astrophysicists have taken a major step forward in understanding how supermassive black holes formed. Using data from three of NASA’s space telescopes, Italian researchers have found the best evidence to date that the direct collapse of a gas cloud produced supermassive black holes in the early universe.