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Archive for the ‘asteroid/comet impacts’ category

Aug 23, 2020

NASA: An Asteroid Will Come Close To Earth Right Before Election Day

Posted by in categories: asteroid/comet impacts, biotech/medical, existential risks

Amid a pandemic, civil unrest and a divisive US election season, we now have an asteroid zooming toward us.

On the day before the presidential vote, no less.

Yep. The celestial object known as 2018VP1 is projected to come close to Earth on November 2, according to the Center for Near Earth Objects Studies at NASA’s Jet Propulsion Laboratory.

Continue reading “NASA: An Asteroid Will Come Close To Earth Right Before Election Day” »

Aug 21, 2020

An asteroid is on possible collision course with Earth this November: Should we be worried?

Posted by in categories: asteroid/comet impacts, existential risks

As if there wasn’t enough to think about these days, now there is talk of an asteroid, which is supposedly heading directly for Earth.

Aug 19, 2020

Asteroid makes closest fly-by of Earth on record — and NASA didn’t see it until after the close shave

Posted by in categories: asteroid/comet impacts, existential risks

An asteroid the size of a car has flown past Earth closer than any seen before without hitting the planet — and NASA admits: “We didn’t see it coming.”

Known as asteroid 2020 QG, NASA said the space rock passed 1,830 miles (2,950 km) above the southern Indian Ocean on Sunday.

If it had actually been on an impact trajectory, it would likely have become a “fireball” as it broke up in the Earth’s atmosphere, the US space agency said.

Continue reading “Asteroid makes closest fly-by of Earth on record — and NASA didn’t see it until after the close shave” »

Jul 21, 2020

Video claims asteroid impact coming in November, but experts weigh in

Posted by in categories: asteroid/comet impacts, existential risks, mathematics

A video on Youtube claims a forecast of near-Earth objects (NEOs) shows one of these may hit Earth in November.

On November 2, 2020 an object labeled 2018 VP1″ is currently projected to come very close to Earth. The video is a little off on its math. Even so, Mike Murray of the Delta College Planetarium in Bay City, says don’t worry.

Continue reading “Video claims asteroid impact coming in November, but experts weigh in” »

Jul 20, 2020

NASA warns of huge asteroid approaching Earth on July 24

Posted by in categories: asteroid/comet impacts, existential risks

“Potentially Hazardous Asteroids (PHAs) are currently defined based on parameters that measure the asteroid’s potential to make threatening close approaches to the Earth. Specifically, all asteroids with a minimum orbit intersection distance (MOID) of 0.05 au or less are considered PHAs,” NASA said in a statement.

According to NASA, asteroid 2020 ND is about 170 metre-long will be as close as 0.034 astronomical units (5,086,328 kilometres) to our planet. The asteroid is travelling at a great speed of 48,000 kilometres per hour. The distance from the earth is what categories this asteroid as “potentially dangerous”.

2016 DY30 is headed in the direction of Earth at a speed of 54,000 kilometres per hour whereas 2020 ME3 is travelling at 16,000 kilometers per hour. The 2016 DY30 is the smaller asteroid of the two as it is 15 feet wide.

Continue reading “NASA warns of huge asteroid approaching Earth on July 24” »

Jul 16, 2020

Have you seen Comet NEOWISE in the sky?

Posted by in categories: asteroid/comet impacts, existential risks

Visiting from the most distant parts of our solar system, it made its once-in-our-lifetimes close approach to the Sun on July 3, 2020 and will cross outside Earth’s orbit on its way back to the outer parts of the solar system by mid-August. Join experts on #NASAScience Live Wednesday, July 15 at 3:00 p.m. EDT to learn more about this comet and how you can spot it before it’s gone. Submit questions now using #askNASA and set a reminder to tune in!

Jun 10, 2020

First global map of rockfalls on the moon

Posted by in categories: asteroid/comet impacts, existential risks, robotics/AI

A research team from ETH Zurich and the Max Planck Institute for Solar System Research in Göttingen counted over 136,000 rockfalls on the moon caused by asteroid impacts. Even billions of years old landscapes are still changing.

In October 2015, a spectacular rockfall occurred in the Swiss Alps: in the late morning hours, a large, snow-covered block with a volume of more than 1500 cubic meters suddenly detached from the summit of Mel de la Niva. It fell apart on its way downslope, but a number of continued their journey into the valley. One of the large boulders came to a halt at the foot of the summit next to a mountain hut, after traveling more than 1.4 kilometers and cutting through woods and meadows.

On the moon, time and again boulders and blocks of rock travel downslope, leaving behind impressive tracks, a phenomenon that has been observed since the first unmanned flights to the moon in the 1960s. During the Apollo missions, astronauts examined a few such tracks on site and returned displaced rock block samples to Earth. However, until a few years ago, it remained difficult to gain an overview of how widespread such rock movements are and where exactly they occur.

Jun 7, 2020

Asteroid the size of the Empire State Building headed our way

Posted by in categories: asteroid/comet impacts, existential risks

Imagine Yankee Stadium or Citi Field cruising by Earth in a giant foul-ball flyby. That’s what’s set to happen this weekend when an asteroid the size of the Empire State Building tumbles through space uncomfortably close – but not close enough to hurt.

Jun 4, 2020

Stadium-sized asteroid heading near Earth this week

Posted by in categories: asteroid/comet impacts, existential risks

But it may be taller than the Empire State Building, which is 1,454 feet tall. The asteroid is estimated to be between 820 feet and 1,870 feet in diameter.

The asteroid was first spotted nearly two decades ago and is called 2002 NN4.

Seek and Destroy: How NASA Protects Us from Thousands of Asteroids.

May 29, 2020

No asteroids needed: ancient mass extinction tied to ozone loss, warming climate

Posted by in categories: asteroid/comet impacts, climatology, existential risks

Malformed spores suggest powerful storms drove ozone loss and led to sterilizing UV radiation.

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