Catch two transits of Io, spot sparkling star clusters, and view Mars at aphelion while the April Full Moon lights the sky this week.

Catch the National Cherry Blossom Festival parade and street festival, shop vintage at a ticketed market, or celebrate D.C. Emancipation Day with fireworks.

Every year, millions around the world switch off their lights for Earth Hour, often thinking of it as a gesture of ...

The next full moon over Mississippi rises April 12. Know when to find dark skies to watch the Lyrids meteor shower this month, when to see more planets.

With meteor showers and other celestial events lighting up the sky throughout April, astronomers predict an exciting month of ...

North Atlantic Right Whales, an endangered species on the brink of extinction, were detected east of Ocean City, and boaters ...

In the coming days ahead, if any of your friends or relatives remark to you that they saw a "strange UFO" on the way to work ...

During "Connections with Evan Dawson" on 4/4/25, co-host Leah Stacy explores CITY's "Earth Issue," focusing on climate. Then, ...

WWF works to sustain the natural world for the benefit of people and wildlife, collaborating with partners from local to global levels in nearly 100 countries. Celebrate Earth Day all month long with ...

While the Earth's atmosphere acts as a protective barrier ... 22,530km (14,000 miles) per hour. This was Nasa's first test to see if it could deflect an asteroid's path and it was a success.

Space debris grows rapidly, threatening satellites and future missions if cleanup efforts don't intensify now.

Jupiter: Spot Jupiter in the evening sky with a telescope, although with the sun setting later, it'll become more difficult ...