If you are going to look for evidence of technologically advanced civilizations in the universe, you should start by thinking about what exactly you might be looking for. My colleagues and I in the NASA-sponsored Categorising Atmospheric Technosignatures program spend a lot of time thinking about this. But there is a question that haunts me … Read more
at Charles Liu’s new book, “The Universe Explained,” Astrophysicist and astronomy guru tells the story of the universe from the first seconds after its birth, through the journey of the Big Bang, to more than 5 billion years from now, when the Milky Way and the Andromeda galaxy are expected to collide, to what could … Read more
Inflation worries many Americans — a jump in the price of groceries and gas means paying more for fewer items, and potentially restricting any savings in the future. But it could also be an opportunity to rethink daily spending, and perhaps even help the environment. There is a link between consumer spending and climate change. … Read more
As the saying goes: If at first you don’t succeed, try, and try again. Tomorrow, Boeing will attempt to re-launch Orbital Flight Test 2 (OFT-2), the second uncrewed flight of the airline’s CST-100 Starliner spacecraft, to the International Space Station, after it was delayed last summer. The flight will test the spacecraft’s ability to safely … Read more
Well, here’s a problem: Sirius B doesn’t seem to have any gas giant planets out there. Sirius B is the closest white dwarf to Earth, the remaining inner portion of a sun-like star after it goes a red giant, blasting its outer layers, revealing its dense core in space. And I mean dense. The mass … Read more
Inside Issue 130 of Inside All About Space, on sale now, explore chaos theory and how it affects the world around us as well as applies to the wider universe. Subscribe to All About Space (Image credit: Future) Get everything about space delivered straight to your door or digital device. Subscribe to All About Space … Read more
Porosity is an important physical property that greatly influences a wide range of physical processes on asteroids. Significantly affects the mechanics of drilling. It not only contributes to dampening shock waves but also determines the amount and distribution of waste heat generated1,2,3. Porosity affects the permeability and movement of gases and liquids through an object, … Read more
NASA has a history of documenting and dealing with how fluids behave differently in microgravity compared to how they appear on Earth. They have long noticed that water droplets merge into floating spheres rather than become heavy droplets. But now, researchers have found a way to replicate this effect by controlling an extremely cold gas … Read more
As the saying goes: If you don’t succeed at first, try, then try again. Tomorrow, Boeing will attempt to re-launch Orbital Flight Test 2 (OFT-2), the second uncrewed flight of the airline’s CST-100 Starliner spacecraft, to the International Space Station, after it was delayed last summer. The flight will test the spacecraft’s ability to safely … Read more
WASHINGTON – NASA is continuing to investigate water that leaked into a spacesuit helmet during a space walk earlier this year and is delaying future spacewalks until engineers can fix the problem. The leak occurred during the latest spacewalk from the American part of the station on March 23, with the participation of NASA astronauts … Read more
