Tag

Planetary Defense

All articles tagged with #planetary defense

science9 days ago

The Future of Space Mining: Unlocking Asteroid Treasures

A study in MNRAS reveals that most asteroids, especially carbon-rich ones, contain low precious metals, making mining for gold unviable. Instead, water-rich asteroids are identified as more practical resources for future space exploration, providing water for fuel and life support, while also aiding planetary defense efforts. Technological challenges remain significant for actual mining operations, emphasizing the need for further research and development.

science22 days ago

NASA's DART Mission Successfully Redirects Asteroid Dimorphos

NASA's DART mission successfully shifted the orbit of asteroid Dimorphos by crashing a spacecraft into it, but unexpected debris ejected from the asteroid, including large boulders, carried additional momentum and altered the asteroid's motion in unforeseen ways, highlighting the complex physics involved in planetary defense efforts. The upcoming Hera mission will further study these effects.

science2 months ago

Students devise plan to prevent Armageddon

In the 1960s, MIT students and a professor devised a plan called 'Project Icarus' to prevent a catastrophic asteroid impact, which involved detecting and deflecting the asteroid using existing technology. Their efforts contributed to the development of modern planetary defense strategies, significantly reducing the risk of asteroid-induced extinction today.

science2 months ago

Interstellar Comet 3I/ATLAS Offers Insights for Earth Defense and Space Exploration

A newly discovered interstellar comet, 3I/ATLAS, is being observed by NASA and international astronomers to improve our ability to track potentially hazardous objects, even though it poses no threat to Earth. The campaign aims to refine asteroid pathway predictions, which is crucial for planetary defense, and involves citizen scientists and global collaboration.

science2 months ago

Interstellar Comet 3I/ATLAS Sparks Scientific and Cultural Interest

The International Asteroid Warning Network has launched a campaign to monitor the interstellar object 3I/ATLAS, which exhibits unusual qualities suggesting a possible technological origin, and plans to use Earth-based observations and potential spacecraft interception to study it further, with close approach expected in December 2025.

science2 months ago

Small Asteroids Near Earth: Recent Close Encounters

A tiny asteroid about 3 to 10 feet wide, labeled 2025 TF, narrowly passed over Antarctica at an altitude of roughly 266 miles on October 1, 2025. It was detected a few hours after its closest approach, highlighting the challenges in spotting small, fast-moving objects in space. Despite its close pass, the asteroid posed no threat to Earth or satellites, and the event underscores the importance of ongoing sky surveys and rapid follow-up observations to improve early detection and risk assessment of near-Earth objects.