Generally, the nights of and near the new moon – when the moon is not illuminated – are better for most stargazing experiences. Here are the dates of new moons this year.

Hubble’s work pushed the field of astronomy forward, starting with his paper demonstrating that some objects exist outside our galaxy.

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...