Fear passed in front of the sun last week, and a NASA rover saw it fly. The Mars moon Phobos, whose name means “Fear” in ancient Greek, was caught on camera by the NASA Perseverance rover on Feb. 8. The potato-shaped moon was visible in front of the sun from Percy’s current perch in Jezero … Read more
When plotting sites for crewed lunar landings — ranging from the forthcoming Artemis missions to eventual lasting moon settlements — mission planners must account for tons of lunar parameters. For instance, the shape of the terrain could make or break a mission and a possible high volume of buried water could make one spot much … Read more
Very soon, a robot surgeon may begin its practice in orbit — and though it won’t quite be a metallic, humanoid machine wearing a white coat and holding a scalpel, its mission is fascinating nonetheless. On Tuesday (Jan. 30), scientists sent a slew of innovative experiments to the International Space Station (ISS) via Northrop Grumman’s … Read more
Later this year, the European Space Agency (ESA) will launch the Proba-3 mission into orbit around Earth. This unique project’s twin spacecraft will align with each other to create frequent, artificial eclipses in space, which will give researchers near-unlimited access to studying the sun’s outer atmosphere, or corona, for the first time. An upcoming terrestrial … Read more
After three years of soaring through the ultra-thin skies of Mars, NASA’s autonomous Ingenuity helicopter has finally been grounded for good. While power still flows through the 4-pound (1.8 kilograms) helicopter, recent images revealed that at least one of its rotor blades sustained irreparable damage after its last flight — Ingenuity’s 72nd flight over the … Read more
Some of the universe’s oldest black holes swoop past our cosmic neighborhood at least once every decade, moving planets in their wake, a new study suggests. And if scientists can detect them, it would provide the first proof that these black holes exist as dark matter. Black holes, regions of immense gravity that even trap … Read more
A roughly 3,000-year-old stone disk covered with enigmatic markings is actually an ancient celestial map marking the brightest stars in the night sky, researchers claim. The tire-size stone, which was discovered near an ancient hill fort in northeastern Italy a few years ago, features 29 carved markings on its front and back that may represent … Read more
In the 1930s, a Swiss astronomer named Fritz Zwicky noticed that galaxies in a distant cluster were orbiting one another much faster than they should have been given the amount of visible mass they had. He proposed than an unseen substance, which he called dark matter, might be tugging gravitationally on these galaxies. Since then, … Read more
Life has found a home on Earth for around 4 billion years. That’s a significant fraction of the universe’s 13.77 billion-year history. Presumably, if life arose here, it could have appeared anywhere. And for sufficiently broad definitions of life, it might even be possible for life to have appeared mere seconds after the Big Bang. … Read more
When astronauts return from spacewalks, they often describe unexpected scents similar to burnt steak and spent gunpowder. But why does outer space smell like torched things, and where does this odor come from? To be clear, space is a near-perfect vacuum. While in space, astronauts protect themselves in spacecraft, spacesuits and space stations, “since direct … Read more
