Picture of the Day

Zwicky Transient Facility spots a bumper crop of supernovae, black holes and more

The Zwicky Transient Facility (ZTF), an automated sky survey project based at Caltech's Palomar Observatory near San Diego, California, has produced its first bounty of new results. Since officially beginning operations in March 2018, the new instrument has discovered 50 small, near-Earth asteroids and more than 1,100 supernovae, while observing more than 1 billion stars in the Milky Way galaxy. This new composite image of the Andromeda galaxy was made by combining three bands of visible light captured by the ZTF. The image covers 2.9 square degrees of sky, which is one-sixteenth of ZTF's full field of view. Andromeda, also known as Messier 31, is the nearest major galaxy to our Milky Way galaxy, located 2.5 million light-years away.

Visit Website | Image credit: ZTF/D. Goldstein and R. Hurt/Caltech