ScienceNOW, Science News, Space.com etc: Asteroid sideswipe leaves a long dusty trail
Wednesday, October 13th, 2010
Last week a little blip of a scoop, and then today a bunch reporters more jump upon news that out in the asteroid belt a schmear of dust and scattered boulders has been spotted. It looks a bit like a comet tail. Diagnosis: two big’uns hit one another hard. This is the closest astronomers have come, it appears, to seeing an instance of what everybody who’s ever looked at the battered surfaces of those things knows. It’s a game of bumper cars out there.
The news breaks big in tomorrow’s issue of Nature. The gist is that the Hubble and the Rosetta spacecraft see enough drifting crud for astronomers to deduce what happened. I’d wait till then for a full roundup, and expect to update this post, but as the embargo’s up and the news got broken independently last week, I’ll start today.
Embargo Playtime: Last week the sharp-eyed Richard A. Kerr at AAAS ScienceNow spotted two abstracts on line to go with the Am Astron. Society Division of Planetary Sciences meeting in Pasadena. Friday Oct. 8, at the on line briefs page called ScienceShot he ran “An Asteroid Smashup.” He knew the info, which he’d found on his own, was embargoed at Nature. Dick sent me a note saying his story thus beats, while evading but not defying or violating, Nature’s embargo that ran out today. He asked that I not post on his item – which I”d not have known about anyway if he’d not told me – for an experiment. Would his piece on its own leave a big enough ripple to trigger other reporter’s to follow?
Apparently not. Relying only on the meeting’s abstracts, there wasn’t much he could report. But the episode is another example of the artificiality of many journal embargoes. People in science are more and more getting advance tastings of research that some journals try to pretend is still corked up and sealed in the bottle. Embargoes, always problematic if convenient to all concerned, are increasingly a construct that merely cows the press while amplifying coverage with an inflated sense of anticipation and frustration.
The news itself is pretty interesting, to be sure, and merits a bit of drum-beating. Violent collisions in our solar system are news – and serve to remind us that one day an asteroid will come knocking at Earth too. And the orchestrated roll-out of the news by Nature, along with press releases, does spoon feed to reporters more material for their stories. Most reports jump on the notion that the images show a giant X in the sky, as in marks the spot. I don’t see it as an X, just a few rays in a diffuse accident skidmark. The Hubble press release says it’s an X though, and reporters tends to go with that.
Other Stories So Far:
- Science News (via USNews & World Report) Ron Cowen : CSI: Asteroid Belt / Hubble and Rosetta investigate a space rock’s demise ;
- Universe Today – Nicholas Wethington: Hubble Sees Asteroid Collision in Slow-Motion ;
- Discovery News – Ian O’Neill: Hubble’s Bizarre X-shaped Slow_Motion Asteroid Collision;
- Space.com – Charles Q. Choi: ‘X’ Marks the Spot: Hubble Reveals Collision Between Asteroids;
- Wired Science – David Mosher: X-Shaped Space Thing is Smashed-Up Asteroid ;
- Sky and Telescope – Kelly Beatty: Crash Scene in the Asteroid Belt ; Good for Beatty, who refers to an X-shaped feature, but mostly to the striations and general morphology of the debris field.
Grist for the Mill: Hubble Press Release and additional links;
- Charlie Petit
