A group of scientists and musicians is trying to start a conversation over the back fence. The team sent messages...More »
▶StarDate Radio: October 14 — Ploonets
Researchers recently added a new term to the astronomy vocabulary: ploonet. It describes an object that started out as a...More »
★Stargazing: October 14
The brightest star in Aries, the ram, sweeps across the eastern evening sky this month. Hamal is an orange-giant star...More »
★Stargazing: October 13
Tonight is the night of the Hunter’s Moon. It’s the full Moon after the Harvest Moon, which appeared in September....More »
▶StarDate Radio: October 13 — Hunter’s Moon
Few Americans have to hunt wild game to survive the long, cold winter these days. But that hasn’t always been...More »
▶StarDate Radio: October 12 — Altair
We’ve seen details on the surfaces of only a few stars other than the Sun. Stars are just so far...More »
★Stargazing: October 12
Altair, one of the members of the Summer Triangle, stands high in the south as darkness falls and drops down...More »
★Stargazing: October 11
Ursa Major hunkers low in the north on autumn evenings. Americans see its brightest stars as the Big Dipper. In...More »
▶StarDate Radio: October 11 — CHEOPS
Much of what makes science work is following up. After the discoveries are made, more research is needed to fill...More »
★Stargazing: October 10
A handful of bright stars fills the evening sky. Around 10 p.m., yellow Capella is low in the northeast, while...More »
▶StarDate Radio: October 10 — Fusion
The Sun is a giant nuclear reactor. Every second, it “fuses” together about 650 million tons of hydrogen atoms to...More »
▶StarDate Radio: October 9 — Rare Earths
A mine in California holds the residue of collisions between dead stars. So do even bigger mines in China. The...More »
Current Magazine
Our September/October issue explores how magnetic fields influence star formation. We also celebrate the bicentennial of the birth of Leon Foucault, the French physicist whose pendulum demonstrated Earth's rotation.
2019 Sky Almanac
Plan for this year's stargazing adventures with our 2019 Sky Almanac, which offers skywatching tips, charts, Moon phases, and much more. And for the rest of the year, we've reduced the price! Order online or call 1-800-STARDATE during regular business hours.
