Skip to main content
  1. Home
  2. Space
  3. News

A huge asteroid makes close approach to Earth today

Add as a preferred source on Google

An asteroid two-and-a-half times the size of the Empire State Building is hurtling toward Earth, but it’s OK to look up.

That’s because it’s been on our radar for decades, giving us plenty of time to calculate its trajectory and confirm that it won’t be colliding with our planet and ending civilization as we know it when it flies by Earth on Tuesday, January 18.

Recommended Videos

As its name reveals, asteroid (7482) 1994 PC1 was discovered in 1994. It is classified as a “Potentially Hazardous Asteroid” due to its large size (3,280 feet or about 0.6 miles) and proximity to Earth during previous flybys, based on scientists’ calculations.

On Tuesday at 4:51 p.m. ET, the asteroid, traveling at around 43,000 mph (69,200 kph) will come within 1.2 million miles (1.9 million km) of Earth, just over five times the distance between Earth and the moon.

It means that unlike the folks in the hit Netflix movie Don’t Look Up, we have nothing to worry about. And once it’s passed, it won’t be coming back for another 200 years (in the meantime, astronomers will be keeping their eyes peeled for other potentially hazardous asteroids).

One exciting element of the flyby of (7482) 1994 PC1 is that folks with even a basic telescope have a chance of spotting it as it speeds past. EarthSky offers a detailed explanation of where to look and precisely what to look out for as the asteroid makes its close approach.

The possibility of a massive space rock one day hitting Earth is a very real concern that prompted NASA to embark on its DART mission aimed at crashing a spacecraft directly into an asteroid to see if we can alter its path. If the test achieves its objective of altering the course of the asteroid, the system could become a viable way for Earth to protect itself from any hazardous objects spotted heading straight for our planet in the future.

Digital Trends has an article containing everything you need to know about the DART mission, which launched from Vandenberg Space Force Base in California in November 2021.

Trevor Mogg
Contributing Editor
Not so many moons ago, Trevor moved from one tea-loving island nation that drives on the left (Britain) to another (Japan)…
SpaceX Starship reaches orbit for the first time but its historic flight ends early
Starship reaches orbit for the first time and deploys 26 Starlink satellites before an early splashdown.
spacex-starship

After 13 suborbital test flights and more than $15 billion in development costs, SpaceX's Starship has finally reached orbit. The 407-foot megarocket, the most powerful ever built, lifted off from Starbase, Texas, on Monday and delivered its first real payload on it's 14th attempt. The celebration came with an asterisk, though, since SpaceX had to cut the planned 10-hour mission to roughly three hours.

https://twitter.com/SpaceX/status/2104601695711904180

Read more
Starship is finally going orbital, and SpaceX has picked September 22
Flight 14 is aiming for orbit, Starlink V3 deployment and a very long day in space.
Starship rocket.

SpaceX is finally ready to give Starship its biggest test yet. The company says the massive rocket's 14th test flight is scheduled for September 22, when it will attempt to put the upper stage into Earth orbit for the first time. The launch is currently pending regulatory approval, with a 75-minute window opening at 7:15 a.m. CT.

Starship has 26 Starlink satellites to deliver

Read more
Want a city on the Moon? Scientists say there’s not enough water
A billion tons still comes up short
Artist impression of activities in a Moon Base.

For decades, humanity has looked up at the Moon and wondered what it would be like to live on it. Think sprawling cities, factories, research centers, and permanent human settlements. Unfortunately, there is one fairly fundamental problem with that vision.

A new study published in Frontiers in Space Technologies argues that even the Moon's potentially enormous reserves of frozen water may be nowhere near enough to support city-sized populations sustainably. Researchers Martin Elvis and Jonathan McDowell estimate that the permanently shadowed regions near the lunar poles could contain roughly one billion tons of water. It sounds like an extraordinary amount until you put a million thirsty humans next to it.

Read more