#aas245

Dwarf galaxy Leo P—the clustering of blue stars at lower right—has an oddball history. After an early burst of star formation, its star production shut down. But unlike most dwarf galaxies, star formation reignited and continues today: https://bit.ly/4j6OgIQ #AAS245

We are joining Carnegie Science in celebrating the 100th anniversary of Edwin Hubble’s discovery of galaxies existing beyond our Milky Way. He found a stellar “milepost marker” embedded in Andromeda and calculated it is outside our galaxy: https://bit.ly/40r30L6

The largest photomosaic of the Andromeda galaxy, assembled from Hubble observations, has been unveiled. It took more than 10 years to collect data for this colorful portrait of our neighboring galaxy and was created from more than 600 snapshots: https://bit.ly/405MsbK #AAS245

Hubble makes another exciting discovery about a quasar with newborn jets: It’s hosted by a spiral galaxy, throwing into question the popular idea that jets are triggered by messy galaxy mergers: https://bit.ly/4h6d2XG #AAS245

Hubble detected an unusual star that spins over seven times faster than our sun. Known as a “blue lurker,” it probably got a turbo-boost from the merger of two accompanying stars that fed material onto the star, increasing its rotation speed: https://bit.ly/3BB3yom #AAS245

Subscribe to the Space Telescope Science Institute on YouTube! We perform the science operations for the Hubble Space Telescope, lead the science and mission operations for James Webb Space Telescope, and will perform parts of the science operations for the Nancy Grace Roman Space Telescope: www.youtube.com/@spacetelescopevision

NEWS: The James Webb Space Telescope is helping connect the dots! 🔴 A team of astronomers scoured multiple Webb surveys to assemble a large sample of “little red dots”—intriguing objects that mostly existed during the first 1.5 billion years after the big bang: https://bit.ly/4j9SVtm