Euclid has two instruments: its visible light camera, VIS, and its near-infrared light camera, NISP. NISP allows Euclid to ...

In this episode, Dave Eicher invites you to go out and try to observe a celestial object that’s quite difficult to see — the Horsehead Nebula. This dark nebula, made of dust and super-cold ...

Image caption, This is photographic plate B2312 in which Williamina discovered the Horsehead Nebula. The three black circles are the stars of Orion's belt. The Horsehead Nebula is circled just ...