The ancients gazed at the Milky Way for millennia, but it wasn’t until the mid-20th century that we discovered we live in a galaxy that takes a spiral shape. This…
NASA astronauts get up-close look at SpaceX’s Starship SN11 prototype (photo)
NASA astronauts just got a tutorial on the spaceship that may land people on the moon a few years from now. Christina Koch and some of her NASA colleagues recently…
Carlo Rovelli: Where does the stuff that falls into a black hole go?
By Carlo Rovelli The universe is full of things we had never foreseen or imagined, none more so than black holes Mark Garlick/Science Photo Library THERE is something paradoxical in…
Now you see it, now you don’t: what happened to Mars’ water?
Once warmer and wetter with enough water to fill half the Atlantic Ocean, Mars is a frigid desert today. But new research indicates most of that water may still be…
Work Begins on Cleaning up Arecibo. The job Could Cost $50 Million
The collapse of Arecibo’s radio telescope was a devastating blow to the radio astronomy community. On December 1st, the suspended instrument platform came crashing down, destroying a large part of…
This Week’s Sky at a Glance, March 12 – 20 – Sky & Telescope
FRIDAY, MARCH 12 ■ Spot Arcturus, the Spring Star, glittering pale yellow-orange very low in the east-northeast after nightfall. It climbs higher in the east later in the evening. By…
Space station tosses 2.9-ton hunk of space junk overboard. It will stay in orbit for years.
The International Space Station got a little lighter last week. The orbiting lab discarded a 2.9-ton (2.6 metric tons) pallet of used batteries on Thursday morning (March 11) — the most…
Crawl Space Insulation and Its Benefits
Nobody loves to pay more! Are you stuck with paying prohibitive energy bills during the colder seasons? If your answer to the above question is yes, then you need to…
The Story Behind Zero Gravity Massage Chairs
I don’t know the exact history of zero gravity massage chairs (also known as “anti-gravity”), but I will take a stab at it based on my own experience with massage…