A test of the first hydrogen bomb by the U.S. in 1952 as part of Operation Ivy. (Photo courtesy of National Nuclear Security Administration/Nevada Site Office)
Skies darkened by smoke worldwide. Cities in ruins, leaving millions dead. Droughts and crop failures spreading famine for years. The realities of nuclear war are difficult to imagine. But, says a team of researchers, they deserve our attention.
New research in Science Advances spells out the potential ramifications of nuclear warf ...read more
The first in a planned series of 10 spacewalks will kick off on October 6. (Credit: NASA)
NASA announced a series of 10 spacewalks happening over the next three months. The complex spacewalks are part of a marathon effort which NASA scheduled to complete repairs and upgrades to the International Space Station. The events could ultimately set a new record for the most spacewalks in a time since 2011, when the ISS was completed.
The first spacewalk is scheduled for Sunday, October 6, at 7 ...read more
Rogue planets, like the one shown in this artist’s concept, drift through interstellar space alone and are thought to be prevalent throughout the Milky Way. Two upcoming space telescopes could help find many more of these faint objects. (Credit: NASA/JPL-Caltech)
Our Milky Way galaxy is home to billions of planets orbiting billions of stars in billions of planetary systems. But lurking in the spaces between, not bound to any star, are free-floating worlds. Astronomers refer to these as ...read more
An all-renewable grid will mean more electricity and more transmission lines. (Credit: Russ Allison Loar/flickr, CC BY-NC-ND)
The main solution to climate change is well known – stop burning fossil fuels. How to do this is more complicated, but as a scholar who does energy modeling, I and others see the outlines of a post-fossil-fuel future: We make electricity with renewable sources and electrify almost everything.
That means running vehicles and trains on electricity, heating build ...read more
The private rocket company laid out a handful of groundbreaking plans over the weekend. (Credit: SpaceX)
Elon Musk gave a barrage of updates on the
future of SpaceX as he stood in front of the company’s new Starship and original
Falcon rockets on Saturday in Boca Chica, Texas. During the presentation, Musk
touched on the details in Starship’s design, the possibilities for the craft,
and the timeline of what’s to come in the near future.
SpaceX thinks Starship could bring ...read more
Author Vishay SinghPosted on Categories Discover Magazine