Scientists have discovered the most distant known object in the cosmos, a young galaxy existing when the universe was only 6% of its present age. The serendipitous discovery raises hopes for resolving two central questions in astrophysics: how and when did galaxies form.
Astronomers have found powerful accelerators of material close to home, in our own galactic neighborhood, as nearby black holes with jets. The jets appear to move at velocities approaching the speed of light and are thought to be connected to the accretion disk and surrounding regions.
Weizmann Institute physicists create a new 3D imaging technique that speeds up and simplifies the process of reconstructing 3D images. The system uses a transparent fluorescent screen to capture light particles emitted by flashes, allowing for precise distance measurements between the screen and object points.