Cepheid variable stars are helping astronomers see what our galaxy looks like from within.
New observations of the Teacup Galaxy show that even black holes with wimpy radio jets can quench a galaxy’s star formation.
Scientists studying ice in the lab say comets’ soft cores and hard exteriors have much in common with a particular dessert.
Look west TONIGHT for a strikingly close pairing of Venus, Mars, and the crescent Moon.
While you’re out observing the tight conjunction, you might want to take a stop by Jupiter to observe some mutual events among its moons. The Pleiades and Hyades clusters also star on these wintry evenings.
Keeping a record of what you see in the telescope is not only fun but helps grow your observing skills. Learn how to start a journal and see how other amateurs keep theirs.
Moonless evening skies last only until around February 23rd, so follow Comet Lovejoy high overhead while you still can. The comet has been fading more slowly than expected. Use our February finder chart.
Orion is riding high in the south as darkness settles in. See what other February stargazing sights await.
Satellite imagery, oceanography, and other datasets come together to show our home planet from mountaintop to ocean bottom.