The City of Sioux Falls and Friends of the Big Sioux River partner for The Big Sioux River Greenway Cleanup on April 25.

The worrisome rise in colorectal cancer deaths in younger adults is concentrated in people with less education, suggesting ...

The four planets will be visible just before sunrise on the eastern horizon. Stellarium. The optimal time to view it depends ...

Here's what to know about Earth Day 2026, what the theme is this year and a list of Earth Day 2026 events in Florida.

A new image shows a striking contrast between Mars' desert-like terrain against dark deposits of volcanic ash.

Earth Day is April 22, but activities begin this weekend. They include a festival featuring Washington’s favorite geologist, ...

Lovers of music and nature will have plenty to look forward to this weekend in Baltimore. Check it all out in our weekend events roundup.

Every spring, my neighbors gather in a local park for a community clean-up day. It’s a gentle nudge to emerge from our winter ...

While the holidays are celebrated on April 22 and April 25 respectively, officials encourage sustainable practices all year long.

Now that the Artemis 2 mission has been successfully completed, it’s worth taking a look at where NASA stands on the role of humans in exploring space and what its path forward should be. Doing this ...

West End Earth Day Clean Up: 9 a.m.-noon April 25, N. 19 th St., Allentown. Meet at the War Memorial on the southeast corner ...

Planet Labs (PL) stock up 1.2% on defense-driven backlog of $900M, 41% revenue growth, and successful AI satellite testing ...