BBC1 年
Meteoroid seen lighting up Gower sky from 270 miles away
A meteoroid believed to have entered the Earth's atmosphere above northern France has been seen lighting up the sky hundreds of miles away in Wales. Sar2667, just 1m (3ft) long, illuminated parts ...
Business Insider8 年
How much damage could an asteroid cause?
Every 2,000 years or so, a meteoroid the size of a football field hits Earth and causes significant damage to the area. Only once every few million years, an object large enough to threaten Earth ...
Orionid meteor shower to light up night sky through most of November
The Orionids meteor shower peaks on Monday, but will continue to light up the sky through Nov. 22, as debris from Halley's ...
Doorbell camera catches rare footage of meteorite striking home’s front walkway
Joe Velaidum and his partner, Laura Kelly, set out to walk their dog when their doorbell camera captured a meteorite striking their front walkway — where Velaidum had been standing moments before.
Six planets are now visible in the night skies. Here’s how to see the ‘planet parade.’
For much of January and February, you have the chance to see six planets in our solar system after dark, although two — Uranus and Neptune — will be hard to see without a telescope or high-powered ...
Forbes1 年
Hotel-Sized Asteroid Undetected Until Two Days After Close Pass By Earth
It came from the same direction as the most destructive meteoroid to impact Earth in a century, but it may be three times larger. And just like that asteroid that blew out windows in Chelyabinsk ...
Phys.org23 天
A new mission watches meteoroids hit the far side of the moon
The mission, known as the Lunar Meteoroid Impact Observer, or LUMIO, is a 12U CubeSat weighing around 22 kg. Its primary payload is the LUMIO-Cam, a visible light camera meant to detect flashes of ...
Business Insider1 年
Here's what fireballs are and how to best spot them at the Perseid meteor shower's peak
To be considered a fireball, a meteor — a streak of light caused by a meteoroid that enters Earth's atmosphere — needs to reach magnitude -4, which means it appears brighter than Venus in the ...
BBC2 年
James Webb Space Telescope hit by tiny meteoroid
A tiny rock fragment has hit the new James Webb Space Telescope's main mirror. The damage inflicted by the dust-sized micrometeoroid is producing a noticeable effect in the observatory's data but ...
CU Boulder News & Events12 个月
Plasma Generation
CFD is performed using LeMANS, which solves the Navier-Stokes equations for hypersonic flow in thermochemical nonequilibrium. Entry of a meteoroid into the atmosphere is followed by ablation of the ...
How to spot comets that can impact Earth? Look at the t(r)ail, scientists suggest
The comet's rocks and dust turn into a meteoroid stream, and their path parallels the comet's. When these meteoroid streams ...