Researchers at MIT have developed a method to detect small asteroids in the main asteroid belt, significantly improving our ability to spot objects as little as 10 meters across.

This new technique, which identified 138 space rocks ranging from bus-to stadium-sized, allows for earlier detection and better tracking of potential near-Earth objects, enhancing planetary defense. The approach, using data from telescopes initially aimed at exoplanets, has uncovered over a hundred new asteroids, with implications for understanding asteroid origins and collision processes.

Advancements in Asteroid Detection.

The asteroid that extinguished the dinosaurs is estimated to have been about 10 kilometers across. That’s about as wide as Brooklyn, New York. Such a massive impactor is predicted to hit Earth rarely, once every 100 million to 500 million years.

In contrast, much smaller asteroids, about the size of a bus, can strike Earth more frequently, every few years. These “decameter” asteroids, measuring just tens of meters across, are more likely to escape the main asteroid belt and migrate in to become near-Earth objects. If they make impact, these small but mighty space rocks can send shockwaves through entire regions, such as the 1908 impact in Tunguska, Siberia, and the 2013 asteroid that broke up in the sky over Chelyabinsk, Urals. Being able to observe decameter main-belt asteroids would provide a window into the origin of meteorites.

The team’s detection method, which identified 138 space rocks ranging from bus-to stadium-sized, could aid in tracking potential asteroid impactors.

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A pair of researchers, one with the Carnegie Institution for Science, the other with California Institute of Technology, has developed a possible solution to the Fermi Paradox. In their paper published in Journal of the Royal Society Interface, Michael Wong and Stuart Bartlett suggest that the reason that no aliens from other planets have visited us is because of superlinear scaling, which, they contend, leads to a singularity. (How do “Predator Civilizations” solve the Fermi Paradox?)

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Yikes o.o! What I believe is that we need to have cooling systems underwater to keep things cooler so coral and fish can survive. It could also mean even that fish food supplies could run out in the future from the ocean.

Following a global assessment, the IUCN Red List of Threatened Species has revealed that 44% of reef-building coral species globally are at risk of extinction. The announcement was made at the ongoing COP29 UN climate conference.

Dr. Michael Sweet, Professor of Molecular Ecology and Head of the Aquatic Research Facility at the University of Derby, is among a pool of experts who contributed to the global coral assessment, which has revealed the severe impacts of our rapidly changing climate.

The IUCN Red List has now reassessed the conservation status of 892 warm-water reef-building coral species, and analysis shows that 44% are threatened.

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At the height of the Cold War, a terrifying concept emerged: a bomb so powerful it wouldn’t need to be dropped. Known as Project Sundial, this doomsday device would have left a 400-km radius in flames and plunged the world into darkness. It was a bomb that would destroy everything – not a weapon, but an apocalypse. How close did we come to pressing the button?

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A small asteroid burned up in Earth’s atmosphere off the coast of California just hours after being discovered and before impact monitoring systems had registered its trajectory.

Last month, an asteroid impacted Earth’s atmosphere just hours after being detected — somehow, it managed to circumvent impact monitoring systems during its approach to our planet. However, on the bright side, the object measured just 3 feet (1 meter) in diameter and posed very little threat to anything on Earth’s surface.

This asteroid, designated 2024 UQ, was first discovered on Oct. 22 by the Asteroid Terrestrial-impact Last Alert System (ATLAS) survey in Hawaii, a network of four telescopes that scan the sky for moving objects that might be space rocks on a collision course with Earth. Two hours later, the asteroid burned up over the Pacific Ocean near California, making it an “imminent impactor.”

The Tesla CEO said AI is a “significant existential threat.”

An asteroid struck Mars 11 million years ago and sent pieces of the red planet hurtling through space. One of these chunks of Mars eventually crashed into the Earth somewhere near Purdue University and is one of the few meteorites that can be traced directly to Mars. This meteorite was rediscovered in a drawer at Purdue University in 1931 and named the Lafayette Meteorite.