Killing an asteroid might be a lot harder than anyone thought – BGR

Killing an asteroid might be a lot harder than anyone thought – BGR

We’ve all seen Armageddon, so it’s easy to imagine that Earth could potentially be saved from a killer asteroid by a ragtag group of scientists and engineers led by Bruce Willis, but the reality is of course much different. Now, a new study suggests that not only would destroying an incoming asteroid be difficult, but […]

Tiny bits of iron may explain why some icebergs are green – Science News

Tiny bits of iron may explain why some icebergs are green – Science News

Scientists may have finally figured out why some icebergs are green. Iron oxides could create the emerald hue. Icebergs often appear mostly white because light bounces off air bubbles trapped inside the ice. But pure ice — ice without air bubbles that often forms on a berg’s underside — appears blue because it absorbs longer […]

Everything You Need to Know About Crew Dragon, SpaceX's Newest Human-Carrying Spaceship – Jalopnik

Everything You Need to Know About Crew Dragon, SpaceX's Newest Human-Carrying Spaceship – Jalopnik

This has been a very big week, space-travel-wise, because for the first time ever a privately-built-and-launched spacecraft capable of carrying a human crew (and, you know, maybe a space dog) docked at the International Space Station. Really, it’s the first private crew-capable spaceship ever to reach orbit. And while it didn’t have a human crew […]

What Voyager 1 Learned at Jupiter 40 Years Ago – Space.com

What Voyager 1 Learned at Jupiter 40 Years Ago – Space.com

It was 40 years ago today (March 5) that Voyager 1 flew past Jupiter, revealing a surprising planetary system that includes moons of ice and fire. And scientists are still looking at some of these moons for signs of habitability for microbes. Voyager 1 and its twin spacecraft, Voyager 2, both left Earth in 1977 […]

Astronomers Around the World Are Training in Case a Giant Asteroid Threatens Earth – Gizmodo

Astronomers Around the World Are Training in Case a Giant Asteroid Threatens Earth – Gizmodo

Artist’s concept of the apocalypse. Illustration: NASA/Don Davis On October 12, 2017, a 20-meter asteroid passed just 50,000 kilometers (31,000 miles) from Earth. For weeks, dozens of astronomers from labs around the world mobilized, measuring everything they could about the asteroid in preparation for an impact. This asteroid had been discovered five years before, and […]

Asteroids are stronger, harder to destroy than previously thought – Phys.org

Asteroids are stronger, harder to destroy than previously thought – Phys.org

Frame-by-frame showing how gravity causes asteroid fragments to reaccumulate in the hours following impact. Credit: Charles El Mir/Johns Hopkins University A popular theme in the movies is that of an incoming asteroid that could extinguish life on the planet, and our heroes are launched into space to blow it up. But incoming asteroids may be […]

Curiosity Crashed, but it's Working Fine Again. NASA Won't Have to Send Astronauts to Turn it off and Back on Again. – Universe Today

Curiosity Crashed, but it's Working Fine Again. NASA Won't Have to Send Astronauts to Turn it off and Back on Again. – Universe Today

In 2012, NASA’s Curiosity rover landed in the Gale Crater on Mars and began exploring for clues about the planet’s past and subsequent evolution. Since 2014, it has been investigating Mount Sharp (aka. Aeolis Mons) – the central peak within Mars’ Gale Crater – in the hopes of learning more about Mars’ warm, watery past […]

Craters on Pluto suggest Kuiper Belt ate its smaller bodies – Ars Technica

Craters on Pluto suggest Kuiper Belt ate its smaller bodies – Ars Technica

Enlarge / A view of Vulcan Planitia’s craters on Charon. NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/K. Singer What did the earliest bodies in our Solar System look like, and what was their fate? It’s difficult to tell, because it’s not clear that there are any of them left. Lots of the earliest material […]