How Do Galaxies Grow? Massive Galaxies Caught In The Act Of Merg...

How do galaxies grow?
(ESO) Astronomers have caught multiple massive galaxies in the act of merging about 4 billion years ago. This discovery, made possible by combining the power of the best ground- and...

The double firing burst
(ESO) Astronomers from around the world combined data from ground- and space-based telescopes to paint a detailed portrait of the brightest explosion ever seen. The observations reveal that...

Virus Discovery Could Lead To Vaccine For West Nile...
New research could contribute to the development of a vaccine and cure for West Nile virus and Dengue fever.

Star Trails: 50 Favorite Columns from Sky & Telescope

The Telescope: Its History, Technology, and Future
In the four centuries since its invention, the telescope has transformed how humans view the universe and their place in it. But what do most of us know about telescopes themselves--their...