Satellites, télescopes, images

The orbit of 2001 KX76 compared to the orbit of the planets

The polar ring of Arp 230

The secret of stellar youth

The oldest cluster in its cloud

The largest of its kind

The icy blue wings of Hen 2-437

The impending destruction of NGC 1427A

The remarkable Red Rectangle Stairway to heaven

The planetary nebula NGC 5979

The night sky around the Twin Jet Nebula (ground-based image)