Tag

Planetary Defence

All articles tagged with #planetary defence

science12 days ago•7 min saved

The UN's asteroid alarm: a Vienna official sounded Earth's near-miss alert

Aarti Holla-Maini, director of UNOOSA, triggered the UN’s first global planetary‑defence alert when asteroid 2024 YR4’s Earth‑impact probability rose from under 0.05% to over 1%, reaching Torino level 3; a rapid international response and consideration of deflection were drafted, testing real‑world space governance. UNOOSA’s Vienna team also coordinates satellite registrations and disaster response, and while the risk subsided by early 2025, the episode underscored the growing challenges of space traffic.

via The Guardian|

#2024-yr4 #aarti-holla-maini #asteroid

science1 year ago•0 min saved

Watch Live: Massive Asteroid Makes Closest Approach to Earth Tonight

Asteroid 2020 XR, measuring between 300 and 700 meters, will safely pass Earth on December 4, 2024, at a distance of nearly six times that between Earth and the Moon. Initially thought to have a small chance of impacting Earth in 2028, further analysis of past observations allowed astronomers to accurately calculate its orbit, ruling out any collision risk for at least the next century. The European Space Agency (ESA) continues to monitor such objects as part of its Planetary Defence activities.

via European Space Agency|

#asteroid #earth #esa

space-safety1 year ago•4 min saved

ESA Prepares for 2029 Apophis Asteroid Flyby

ESA's Space Safety programme has received permission to begin preparatory work for the Rapid Apophis Mission for Space Safety (Ramses), which will rendezvous with asteroid 99942 Apophis and study its close flyby of Earth in 2029. The mission aims to improve our understanding of asteroid behavior and enhance planetary defense capabilities.

via European Space Agency|

#apophis #asteroid-flyby #esa

science-and-technology1 year ago•1 min saved

"Spectacular Meteor Fireball Illuminates Skies Over Spain"

ESA's fireball camera in Cáceres, Spain, captured a meteor on the night of May 18-19, 2024. The meteor, likely a small piece of a comet, traveled at 45 km/s before burning up over the Atlantic Ocean. The object, estimated to be 1 meter in size and weighing 500-1000 kg, was not detected before impact due to its approach from a star-crowded region of the Milky Way.

via European Space Agency|

#allsky7-network #esa #fireball-camera

science3 years ago•1 min saved

Massive asteroid to pass close to Earth and Moon this weekend.

The European Space Agency has announced that a large asteroid, named 2023 DZ2, will safely pass between Earth and the Moon on Saturday, coming within a third of the distance from Earth to the Moon. The asteroid is estimated to be 40 to 70 metres wide and will be used as a training exercise for planetary defence efforts. The asteroid will pass 175,000km from Earth at a speed of 28,000 kilometres per hour. The United Nations-endorsed International Asteroid Warning Network will carry out a “rapid characterisation” of 2023 DZ2, analysing the asteroid with a range of instruments such as spectrometers and radars.

via Al Jazeera English|

#asteroid #earth #moon

science3 years ago•3 min saved

Massive 'city killer' asteroid to safely pass between Earth and moon's orbits this weekend.

An asteroid known as "city killer" will pass harmlessly between the orbits of Earth and the moon this weekend. The asteroid, measuring between 40 and 100 meters in size, will fly by at a distance of 105,633 miles from Earth. Experts will use radar to get more precise measurements for the object. The phrase "city killer" is used by experts in reference to two known asteroid impacts. There are currently more than 1,450 near-Earth objects on the "risk list."

via KTRK-TV|

#asteroid #earth #moon