Tag: Golden Gate Bridge

An asteroid the size of the Golden Gate Bridge to make “very close encounter” with Earth on first full day of spring

Sophie Lewis – March 12, 2021

An asteroid similar in size to the Golden Gate Bridge will whip past Earth later this month — the largest and fastest asteroid to pass close to our planet this year.

But don’t worry, it won’t get too close.

The asteroid, officially known by NASA as 231937 (2001 FO32), is about 1,300 to 2,230 feet wide, according to observations made by the NEOWISE team, putting it at the smaller end of the scale. It has an orbit period of 810 days.

The asteroid is smaller than the last notable one to make a close approach to Earth, but it will be three times closer, NASA said in a statement Thursday.

2001 FO32 is set to come within 1.25 million miles of Earth at 11:02 a.m. ET on March 21, just one day after the spring equinox. That’s close enough for NASA to classify it as “potentially hazardous” in its database of near-Earth asteroids, a designation given when they come within about 4.65 million miles of Earth, and are larger than 500 feet in diameter.

It will zoom past at almost 77,000 miles per hour, or 21 miles per second — peaking scientists’ interests as one of the fastest space rocks known to fly past Earth. The asteroid is “unusually speedy” due to its highly inclined and elongated orbit around the sun, which takes it closer to the sun than Mercury and twice as far from the sun as Mars.

https://www.cbsnews.com

‘Potentially Hazardous’ Asteroid the Size of Golden Gate Bridge Approaching Earth at 11 km/s

Sputnik News – May 11, 2020

Several space rocks are expected to cross paths with earth this month, but the largest one, and potentially the most dangerous, is the Apollo-class 1997 BQ asteroid, as researchers believe that any space objects measuring close to one kilometre in diameter could have devastating consequences for our planet.

NASA disclosed that 1997 BQ asteroid, also known as 136795, will “closely approach” Earth on the evening of 21 May, sweeping round at a speed of around 11.6 kilometre per second. The space rock was first observed back in January 1997 and is measured at between 0.668 and 1.493 kilometers in diameter, judging by its brightness, which makes it “roughly” comparable in size to the Golden Gate Bridge, the space agency notes.

The asteroid is deemed “potentially hazardous” by NASA, as it belongs to the Apollo category of space rocks, the trajectory of which crosses the orbit of our planet. It might be too early to sound an alarm though, as 1997 BQ will only approach our home from a distance of 0.04115 astronomical units, or 6.156 million kilometres in human terms.

However, NASA’s Centre for Near Earth Object Studies is closely monitoring the object which is considered to be larger than 97% of other space asteroids. Any rocks that are close to one kilometre in size can be potentially dangerous to our planet, the National Near-Earth Object Preparedness Strategy revealed in 2018, as they can create a significant regional impact with secondary effects such as tsunamis, without even making contact with the earth.

https://sputniknews.com