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May 25, 2021 Lunar libration lets us see more than 50% of the moon. Photos by Manuel Castillo Vela/ EPOD. It’s common knowledge that our moon has a near side and a far side. And most people know that half of the moon always faces Earth, and one half always points away. Does this mean we can only see 50% of the moon’s surface from Earth? No. Over time, it’s possible to see as much as 59% of the moon’s surface, due to a combination of motions – in particular, a slight north-south rocking and east-west wobbling of the moon – known as

April 27, 2021 at 2:34 pm The coast is a beautiful place to be. And while these enchanting salt-spray flecked landscapes offer sea vistas by day, the coastline also has much to offer astronomers and astrophotographers after the Sun has set. Advertisement Many coastal locations have public spaces where it’s possible to set up telescopes and other equipment for doing astronomy or astrophotography. You can’t just plonk your scope down anywhere, but if you do find a suitable spot you’ll soon see why the beach or the coast can be a great place to view the stars. The International Space Sta...

New research looking at micrometeorites — literally microscopic bits of meteorites, particles of rocks and metals from space that fall to Earth — shows that about 5,200 tons of this cosmic debris settles onto the ground every year. 5.2 million kilos per annum, or about 14 tons per day. At least. That's equivalent to the mass of a garbage truck every day. Oof. Also, this is very wee stuff, smaller than a millimeter in size and some smaller than the width of a human hair. There's no reason to panic *. It slows from interplanetary speeds to basically 0 way up in the atmosphere and then dri...