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DART delayed to November launch as environmental testing begins February 19, 2021 NASA’s Double Asteroid Redirection Test (DART) spacecraft has been moved to its secondary launch window as it begins thermal and environmental testing. The new launch date of November 24, 2021 is a delay from an original target of July 21. DART is NASA’s first planetary defense demonstration, planned to change an asteroid’s orbit by a kinetic impact. DART is a simple technology demonstrator which will attempt to impact Dimorphos, a moonlet of the asteroid Didymos. NASA’s Science Mission Directorate (SMD)...

According to a book called “ The Ends of the World” that was written by an award-winning science journalist named Peter Brannen, dinosaurs may have beat humans to the moon – or at least their bones may have. An excerpt of Brannen’s book was recently shared on Twitter by a blogger named Matt Austin. We all know that the dinosaur-killing asteroid that struck the Earth about 66 million years ago was incredibly massive, but was it powerful enough to send pieces of the dinosaurs into space? According to Brannen, the answer is yes. He claimed that since the asteroid sent up large volumes of...

© NASA/Donald E. Davis An artist's impression of a giant space rock slamming into Earth 65 million years ago near what is now Mexico's Yucatan Peninsula. A consortium of scientists now says this was indeed what caused the end of the Age of Dinosaurs. Asteroids aren't completely random? Mass extinctions of life on Earth appear to follow a regular pattern, a new study suggests. In fact, widespread die-offs of land-dwelling animals - which include amphibians, reptiles, mammals and birds - follow a cycle of about 27 million years, the study reports. The study also said these mass extinctions coi...

And then you've got to send a camera down and then you've got to start going down there and recover the wreckage. at those depths, it's a really difficult job. >> how much of a problem is the silt on the floor of the ocean? >> well, you know, it could be a problem or it could be good. it's a problem if the debris and wreckage has sunk into the silt and covered it up. but on the other hand, i've been a geologist for a while and if you find disturbance in the silt, that's something that you could find on the side scan sonar. thinking that you had an asteroid impact, obviously not that big, but o...

For example, mr. corals are threatened and many large animals are threatened. rhinos and apes and animals people are familiar with and we are losing organisms. >> you are sugaring it isuggest because of what we are doing? >> the extinction of the dinosaurs 66 million years ago which there is a pretty broad scientific consensus was caused by an asteroid impact and that crater produced by going to the earth is off the gulf of mexico. now you will hear scientists say i have heard scientists say that we are the asteroid because of these very radical ways that we are changing the planet. for exampl...