Worried About Asteroid 2014 JO25? Don’t Be.

SPACE NEWS FLASH: On Wednesday, April 19, the asteroid 2014 JO25 will pass by Earth, coming as close as about 1.1 million miles at 12:24 UTC (8:24 a.m. EDT / 5:24 a.m. PDT). Yes, this asteroid is fairly large—just under half a mile across—and is traveling very fast—about 21 miles a second— BUT even so it…

An Asteroid Approaches Your Planet: Roll a d10

It sounds like a surprise challenge posed by the “Dungeon Master” in a game of Dungeons & Dragons but this is sort of what happened on a cosmic scale on Feb. 6, 2017, when the 200-meter (656-foot) -wide asteroid 2017 BQ6 passed by Earth. Using the radar imaging capabilities of the giant 70-meter antenna at…

Could This Asteroid Hit Earth? Astronomers Go “Back in Time” to Find the Answer

Astronomers are always watching the skies for observations of near-Earth asteroids—”space rocks” that have orbits close to Earth’s and, in the case of potentially hazardous asteroids (aka PHAs), those whose orbits could actually cross Earth’s and are larger than 150 meters (500 ft) across. When a new one of these is discovered—no small feat considering that…

NASA Readies OSIRIS-REx to Visit an Asteroid

NASA is about to embark on its first mission to sample an asteroid—and I’ll have a front-row seat to the launch! On Thursday, Sept. 8, at 7:05 p.m. (23:05 UTC) the launch window opens for the launch of OSIRIS-REx, NASA’s mission to visit the near-Earth asteroid Bennu, orbit and map it, collect a sample and…

NASA Hits Halloween Asteroid With Radar

On the afternoon of Oct. 31, 2015, Earth was visited by something much creepier than the typical Halloween trick-or-treater: a dark 2,000-foot (600-meter) -wide asteroid that sped silently (because space) by, approaching at its closest only about 1.3 times the distance to the Moon. Designated 2015 TB145, this particular near-Earth object had only just been…

This Asteroid Will Come Eerily Close to Earth on Halloween

Yes, it’s true: a rather not-so-tiny near-Earth asteroid SKULL-SHAPED ZOMBIE COMET (see below) 2015 TB145 will make a relatively close pass by our dear planet Earth on October 31, aka Halloween — the day when certain beliefs profess that the veil separating the worlds of the living and the dead is at its thinnest, allowing spiritual and even physical interaction to occur…

Half-kilometer Asteroid to Pass Closely By on January 26

Just under two weeks from now, on Monday, Jan. 26, the 1/3-mile (0.5-km) -wide potentially hazardous asteroid 357439 (2004 BL86) will pass by Earth at 3.1 lunar distances, or 739,680 miles (1,190,400 km). While this may sound like a long way off, in the grand scheme of things it’s still a close pass… especially for…

Telescope Tag-Team Reveals an Asteroid Beast’s Beauty

Telescope twin powers: ACTIVATE! Form of… an asteroid? Okay, so the telescopes involved aren’t twins — one is a giant 70-meter dish in California’s Mojave Desert and the other is a 305-meter behemoth high in the Puerto Rican rain forest — they did combine their powers to image the passing asteroid 2014 HQ124 on June 8…

NASA’s Surprising Discoveries About Three Near-Earth Asteroids

Every few days or so I like to check the “Close Approaches” page of JPL’s Near-Earth Object Program, just to see what sorts of cosmic objects are whizzing by our planet; how big they are, when they’ll come, and how far they’ll (hopefully!) miss us by. Most of them are relatively small asteroids several dozen…