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Why birds smash into windows

Up to 1 billion birds die each year in the U.S. due to collisions with windows. Why do birds slam into windows, and what can you do to prevent it?

New Project Skyglow video and giveaway

The guys at Project Skyglow have done some amazing videos, and they have a new book out. It’s not too late to enter their giveaway, honoring International Dark Sky Week.

Why cats can’t resist (even a phony) box

Twitter has been blowing up with posts on cats’ attraction to taped squares on the ground. An animal behavior expert explains what draws Fluffy to the #CatSquare.

This asteroid and comet look similar

Radar images of close-passing large asteroid 2014 JO25, which swept near last week, show it looks a lot like Comet 67P/Churyumov–Gerasimenko, which was explored by the Rosetta spacecraft.

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.

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!

Lake Baikal: Earth’s deepest, oldest lake

Controversy surrounds construction of hydropower stations on a river that feeds deep, ancient Lake Baikal.

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.

Green moon on April 20, 2017? Nah

The green moon rumor started in 2016. Now it’s back. It’s a joke, y’all. We’re not going to have a green moon on April 20, 2017. This joke has its roots (ahem) in cannabis culture.

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.

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.

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.

Why does the moon seem to follow me?

Here’s something you – or your kids – might notice. When you’re moving in a car, earthly objects get left behind, but the moon seems to follow. Why?

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.

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.

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.

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 3 is John Burroughs’ birthday

John Burroughs – born in 1837 – was one of the first nature writers. He was the first to say, “I go to nature to be soothed and healed, and to have my senses put in order.”

Asteroid close encounter on April 2

The near-Earth asteroid 2017 FU102 has a very close, but safe, encounter with Earth on April 2, 2017, sweeping to within just over half the moon’s distance.

April’s birthstone is the diamond

Happy birthday April babies! Your birthstone, the diamond, is the rich cousin of graphite.