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Mike Wehner

Articles 5,410
polar drift

Earth is wobbling, and it’s probably our fault

April 27th, 2021

When you picture the Earth spinning in space you imagine it rotating just like a globe does, with two static poles and a line running from north to south. Unfortunately, things aren’t nearly that simple, and as conditions on Earth change so do the locations of the North and South poles. Scientists have known this …

mars helicopter photo

NASA’s Mars helicopter took a photo, and it’s a beauty

April 26th, 2021

NASA’s Mars helicopter has now logged multiple flights on the Red Planet, claiming a number of “firsts” along the way. The aircraft is officially the first manmade vehicle to perform a powered flight on another planet. It’s a huge accomplishment for NASA and, to a larger extent, humanity, but we hadn’t yet seen Mars from …

crew dragon space junk

The SpaceX Crew Dragon had a near-miss with space junk

April 26th, 2021

Space junk is a serious problem. I’ve written about this topic at length, and it’s only getting worse with time. Every satellite that dies in orbit, rocket component that is jettisoned, and wrench that is dropped during a spacewalk adds to the cloud of trash orbiting Earth. This debris poses a serious threat to all …

mars ingenuity flight

NASA’s Mars helicopter just took an extremely long flight

April 26th, 2021

NASA is moving fast with its Ingenuity helicopter trials on Mars. In its first flight, the tiny aircraft took off, hovered, and landed in place. Its second flight saw it take off, travel a relatively short distance of 16 feet, and then land again. Its third flight, which NASA completed on Sunday, April 25th, was …

food recall

If you bought this product from Costco, throw it away

April 26th, 2021

Canned foods aren’t usually as tasty as fresh foods, especially when it comes to vegetables or things like beans. The trade-off is that canned food products almost always last a very, very long time. Their long shelf-life is due in large part to the fact that a well-sealed can prevents things like oxygen and light …

hubble star

This star already blew its top, but it’s still here

April 25th, 2021

Stars come in many shapes and sizes. Our Sun, for example, is massive compared to Earth, but it’s far from the largest or most impressive. Using the Hubble Space Telescope, NASA and the European Space Agency are able to observe many nearby stars and those surveys have helped scientists learn a great deal about how …

farming evolution

We may be accidentally putting the brakes on evolution

April 22nd, 2021

Evolution is extremely important to the long-term survival of any species. Conditions in any habitat are constantly shifting and it’s up to the plants and animals in those environments to adapt or face extinction. Genetic diversity is how nature solves this problem, and as each species in a habitat slowly branches out, the ones that …