The best telescope for stargazing is now 19% off in Amazon's Black Friday deal — save $310 on the Celestron NexStar 8SE and see planets and deep space like never before.
Celestron claims it's the 'world's most beloved telescope' and we have to agree — we ranked it best overall in our best telescopes for seeing planets and best telescopes for deep space buying guides, and we also named it the best motorized scope in our best telescopes guide.
I review star projectors for a living and this early Black Friday deal is one of the best I've seen all year. This week we've seen the Pococo Galaxy star projector drop from an inflated price of $145.99, down to $89.99 last week and $84.79 on Tuesday.
Starship may have gone boom on Saturday, but there was a lot to like about the giant vehicle's second-ever test flight, SpaceX says. Case in point: The fact that all 33 engines of the Super Heavy first stages fired simultaneously all the through a full burn, an historic first.
A few years ago, astronomers saw for the first time a patch of cosmic darkness long thought to be unseeable — a black hole, a powerful, elusive beast so dense that not even light can escape its gravity. Called M87*, the black hole is known to be spinning and now, scientists say, it's losing engergy through giant 'lightsaber' jets.
North Korean state media reports the nation has successfully placed its first spy satellite into orbit. The satellite, called Malligyong-1, entered orbit late on Tuesday, sources say. Here's what it may mean.
(NASA/Goddard Space Flight Center Conceptual Image Lab)
Blazars are feeding supermassive black holes that sit at the hearts of active galaxies, blasting out enormous jets of radiation and matter. And according to new research, they could actually be pelting our planet with neutrinos — otherwise known as "ghost particles."
The more we learn about our climate, the better equipped we become in addressing the factors harming it. And that's where NASA's EMIT instrument on the International Space Station comes in. EMIT has identified the sources of 750 different greenhouse gas emissions from orbit. Here's what it means.
