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Celebrating science, the Earth and the sky
Earth Day and the March for Science, April 22. International Dark Sky Week, April 22-28. Links and resources for all 3, here.
April 21, 2017
Video: Cassini’s final crazy engineering
During Cassini's close pass of Titan on April 21-22, Titan's gravity will bend Cassini's orbit around Saturn, shrinking it slightly, so that instead of passing just outside the rings, the spacecraft will begin its Grand Finale dives just inside the rings. Wow!
April 21, 2017
Asteroid 2014 JO25 bigger than expected
It's coming closer today than any asteroid this large since 2004. It came into view of small telescopes a few hours ago. Early radar observations indicate it's bigger than we thought.
April 19, 2017
Watch space debris conference online
ESA invites you to watch the opening address and more from the European Conference on Space Debris. It'll begin April 18 at 09:30 CEST.
April 17, 2017
New global map of Earth at night
First new global map of Earth at night since 2012, dubbed Black Marble. It shows city lights, boats on the water, how people follow geography, population patterns and more.
April 14, 2017
More ways sun storms can disrupt things
Scientists are learning more about the way storms on the sun can disrupt our communications satellites and ground-based electric grids.
April 14, 2017
Molecular clocks track human evolution
How do scientists figure out when evolutionary events happened? It turns out our DNA is a kind of molecular clock, keeping time via genetic changes.
April 9, 2017
Rescuing 11 elephants from a mud hole
Asian elephants got stuck in a mud-filled old bomb crater in Cambodia. A collaborative rescue effort saved them all.
April 8, 2017
Use zip code to attract birds to your yard
Audubon website lets you enter your zip code to see a list of the best bird-friendly plants for your yard. Plus a free app to identify the birds you see.
April 6, 2017
Close pass from asteroid 2017 GM!
Asteroid 2017 GM is one of the 10 closest asteroids known so far to sweep past Earth, and then keep going. At its closest, it was less than 1/20th of the moon's mean distance.
April 4, 2017
