The last remnant of a once-enormous ice sheet will be gone in about 300 years, according to a new study. Scientists say warming temperatures are the reason.
A waning crescent moon is sometimes called an old moon. It’s seen in the east before dawn. Next new moon is March 28 at 02:57 UTC.
Waning crescent moon with earthshine - March 25, 2017 - via Robert Pettengill
in Austin, Texas.
Venus reaches inferior conjunction today, officially leaving the evening sky. It has been low in the sky, where Earth’s atmosphere has caused Venus to scintillate, or twinkle, in many colors.
Photo taken on March 24, 2017 - the evening before inferior conjunction - as Venus, at 38° altitude, was shining only 8.4° away from the sun. Photo by Helio C. Vital.
Sure, we’re all collections of space dust. But astronomers also want to study it in order to understand how space dust in our Milky Way obscures starlight from afar.