Spot moon, Antares, Saturn after sunset

Most everyone worldwide should spot the young moon after sundown, with Antares and Saturn nearby. Miss 'em tonight? No worries. They'll be close the next few evenings.

See it! Elusive Uranus at opposition

Uranus - most distant planet visible, barely, to the unaided eye - was opposite the sun this week. Photos from the EarthSky community here.

Orionid meteor shower peak tonight!

This weekend is an awesome time to look for meteors in the annual Orionid shower. They'll probably most prolific in the hours before dawn on October 21.

Watch ISS spacewalk October 20

Friday's is the last of 3 spacewalks by International Space Station astronauts this month.

Watch for Taurid fireballs

North and South Taurid meteor showers happen simultaneously in late October and November. They're relatively minor showers, but produce a high percentage of fireballs, or bright meteors.

Whales and dolphins live ‘human-like’ lives

They work together, talk to each other and use tools. A new study links the complexity of Cetacean culture and behavior to the size of their brains.

Sunset over Atlantic, from Brazil

Saquarema was once known as Brazil's surfing capital. Spring is in progress there, and Helio C. Vital says that the sunset is almost back over the ocean.

Uranus at opposition in 2017

Opposition for Uranus - or any outer planet - means it's opposite the sun in our sky, rising at sunset. The new moon provides a dark night for viewing this faint world.

Traveling to Mars? Top 6 health challenges

NASA aims to have humans on Mars by the 2030s. The people making the long space journey will experience health risks they've never faced before.

See it! Moon passes Venus and Mars

Did you see the moon sweep past the planets this week? Spectacular images from EarthSky friends here. Thanks to all who submitted!