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Beverly Lynds' catalog of dark nebulae (LDNs) is a crucial resource for astronomers. Existing methods for identifying LDNs in images are often inaccurate. A new project is digitally annotating Lynds' ...

Humanity is obsessed with astronomical record keeping. The Babylonians compiled their first listing of the stars in the 12th century b.c.e. Around 1000 b.c.e., they followed it with an expanded ...

The Heart Nebula (IC 1805) is a large star-forming region. It contains a young star cluster (Melotte 15). The nebula is about 7,500 light-years away and over 300 light-years across. Viewing requires a ...

Planetary nebulae represent a brief, yet illuminating, phase in the evolution of low- to intermediate-mass stars. These glowing shells of ionised gas are shed in the late stages of stellar development ...