Scientists trace high-energy particles back to sun’s plasma

Scientists may have discovered when and how high-energy particles that bombard Earth and other objects emerge from violent environments such as the sun’s atmosphere.  These high-energy particles pose a risk to delicate satellite technology and to astronauts, and can even affect aircraft flying over the North Pole. Although researchers have been studying these particles for decades, it’s been difficult to spot a clear pattern of when flare-ups can emerge and thus to predict when they might occur.  In new research, based on simulations created with supercomputers, scientists identified the plasma…

Read More

Best used lenses for digital cameras in 2022

Looking for the best second-hand lenses to expand your camera collection? The second-hand market is particularly buoyant with price and supply issues affecting the camera and technology sectors. Purchasing a top-quality lens is perhaps one of the best ways to improve your setup, and there are significant savings to be found if you opt for a second-hand option on the used market. Adding variety to your photography is one of the key features new lenses can provide. Whether you’re a landscape photographer, astrophotography enthusiast, or a portrait person, different lenses…

Read More

NASA’s planetary defense mission will test asteroid deflection, but how realistic is it?

On Sept. 26, NASA will crash a spacecraft into an asteroid to disrupt its path. The space rock isn’t predicted to collide with Earth, nor is any other known asteroid or large object. The impact is a test — the crux of NASA’s Double Asteroid Redirection Test (DART) mission. Though there is no true impending collision, the DART mission closely mimics what NASA scientists would do if an asteroid were headed toward Earth. The mission will also give scientists valuable data that will better prepare them to redirect a large…

Read More

Satellites track 5 storms as Atlantic hurricane season heats up

The Atlantic hurricane season of 2022 has picked up momentum. After a slow start, Hurricane Fiona has strengthened into a Category 4 storm after knocking out power grids across Puerto Rico earlier this week. Meteorologists are also monitoring Tropical Storm Gaston and three other areas of low air pressure that might develop into cyclones in the next few days.  All five of these areas of meteorological concern are visible in a single image captured Thursday (Sept. 22) by the GOES 16 meteorological satellite from its vantage point 22,000 miles (36,000…

Read More

Saudi Arabia aims to launch 1st woman to space as soon as 2023

A Saudi Arabian woman will reach space for the first time next year, if all goes according to plan. The nation announced today (Sept. 22) that it has started an astronaut program (opens in new tab) and intends to send two of its citizens to space — at least one of them a woman — as early as 2023. That mission will be organized by Houston-based company Axiom Space. “Space belongs to all of humanity, which is one of the reasons Axiom Space is pleased to welcome our new partnership with…

Read More