Scientists spot 10,000th medium near-Earth asteroid in planetary defense milestone | Space
Scientists watching the skies for asteroids that may threaten Earth have hit a new milestone, spotting the 10,000th sizable space rock that circles the sun near Earth's orbit.
The detection comes as part of NASA's ongoing planetary defense work, which discovers and monitors space rocks in the inner solar system to assure that no large asteroid is on course to impact Earth.
What if… an Asteroid Was Headed For Earth? | by KD Writes | Feb, 2022 | DataDrivenInvestor
D on't Look Up is a satirical Netflix drama about what would hypothetically happen if an asteroid was headed for earth. Watching the movie, made me wonder… what if an asteroid really was heading our way? Would we really only know 6 months prior to the event?
After the movie, I fell deep into a hole researching this topic all night and thought I'd share some insights with my readers.
Insignificant asteroid still something to ponder, Jesuit says
A rock nearly five billion kilometres from Earth circling the Sun in a long ellipse once every 300 years might not be breaking news, but Jesuit astronomer Fr. Richard Boyle believes it's worth thinking about.
Boyle discovered this particular Trans Neptunian Object in December using the Vatican Advanced Technology Telescope on Mount Graham in Arizona. His images and data were then analyzed by Lithuanian astrophysicist Kazimieras Cernis of Vilnius University. The object is romantically named "2021 XD7.
Evidence of giant asteroid strike may be buried under Wyoming | Science | AAAS
Some 280 million years ago, before the rise of the Rocky Mountains—or even the dinosaurs—a 2.5-kilometer-wide asteroid smashed into the supercontinent of Pangaea, near the eastern border of present-day Wyoming.
Despite the tumult on Earth’s surface, however, plate tectonics had the last laugh. Intruding oceans and shifting landscapes buried the resulting 60-kilometer-wide crater—about the size of Rhode Island—in a tomb of sand that eventually became sandstone.
Asteroid belts could mean habitable exoplanets | SYFY WIRE
Asteroids have struck fear into the human species ever since we found out what annihilated the dinosaurs , but the same kinds of space rocks that have caused mass extinctions have another face.
"Asteroids can impact the Earth when their orbital eccentricity is increased," Martin told SYFY WIRE. "This could happen through resonances. When an asteroid is within a resonance, its eccentricity gets excited, and its orbit can cross Earth's orbit and potentially collide with Earth."
Newly Discovered Trojan Asteroid Has Same Orbit as Earth - The Debrief
In our solar system, there are locations known as Lagrange points. From a gravity standpoint, these locations are relatively stable, meaning that objects residing in them more or less hold their location.
From time to time, asteroids can become trapped in these Lagrange points. Due to its massive gravitational pull, Jupiter has over 10,000 such space bodies, known as Trojan asteroids, sitting in its various Lagrange points.
Asteroids, Hubble rival, and Moon base: China sets out space agenda
China has had a bumper few years in space exploration, and its ambitions are about to get bolder.
Chang'e-7, set to launch in 2024, will carry out a detailed survey of the Moon's south pole, including mapping the distribution of ice in its shadowy craters. Chang'e-6 will follow, aiming to bring back polar soil samples.
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