More than two years after it launched, a spacecraft called OSIRIS-REx is approaching its target, an asteroid named Bennu. Scientists hope that rock samples from Bennu will provide insight into the likelihood of life on other planets, as well as the risk the asteroid poses to earth. PBS NewsHour science correspondent Miles O’Brien explains the […]
Life on Mars? Watery new discovery raises tantalizing possibilities
A huge announcement this week from the European Space Agency: they have found liquid water on Mars. Originally aired on the PBS NewsHour. Previous detections of water on the Red Planet were have all been frozen–though both imaging and on the ground sampling have also shown that liquid water was present on Mars’ surface in […]
What Kilauea’s eruption can reveal about volcanoes on other worlds–and possibly, alien life
Over the three decades it has belched toxic gases and churned out lava, Hawaii’s Kilauea volcano has been a menace to the area that surrounds it. Last week, Kilauea’s eruption destroyed more than two dozen homes and forced the evacuation of nearly 2,000 people. On Sunday, a new fissure — stretching nearly 1,000 feet — […]
Astronaut receives honorary doctorate while in space
Walking across the stage and receiving a diploma is at once a small step and a giant leap for high school and college graduates. Before that happens, however, there’s usually some pomp and circumstance graduates have to sit through. Friday’s graduation ceremony at Purdue University was no different–but the bestowing of honorary degrees was something […]
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