Feeds

Meteor shower traced to 1490 comet break-up

Quadrantid mystery solved

Top three mobile application threats

Astronomers have confirmed the origin of the Quadrantid meteors as a "deep-space explosion" of a comet in 1490 which was observed in China, Japan and Korea, New Scientist reports.

Fourteen astronomers last week tracked the shower's annual display during a nine-hour flight from California to the North Pole. Peter Jenniskens of NASA had previously followed up suspicions that it was caused by the debris of the 1490 event, in which observers spotted a comet "following a path similar to that of the Quadrantids", and which suddenly "flared up".

Jenniskens calculated that this relatively young stream would be narrow, and therefore "easily deflected by Jupiter's gravity". He predicted that accordingly it would "arrive a few hours earlier than if it were an older, more diffuse stream", peaking at 0200 GMT on Friday.

The astronomer's observations confirmed this. Apart from the Quadrantids, the 1490 exploding comet left a more substantial piece of debris - a near-Earth asteroid dubbed 2003 EH1. ®

3 Big data security analytics techniques

More from The Register

next story
Red-faced LOHAN team 'fesses up in blown SPEARS fuse fiasco
Standing in the corner, big pointy 'D' hats
KILLER SPONGES menacing California coastline
Surfers are safe, crustaceans less so
Opportunity selfie: Martian winds have given the spunky ol' rover a spring cleaning
Power levels up 70 per cent as the rover keeps on truckin'
KILLER ROBOTS, DNA TAMPERING and PEEPING CYBORGS: the future looks bright!
Americans optimistic about technology despite being afraid of EVERYTHING
Discovery time for 200m WONDER MATERIALS shaved from 4 MILLENNIA... to 4 years
Alloy, Alloy: Boffins in speed-classification breakthrough
Liftoff! SpaceX Falcon 9 lifts Dragon on third resupply mission to ISS
SpaceX snaps smartly into one-second launch window
Elon Musk's LEAKY THRUSTER gas stalls Space Station supply run
Helium seeps from Falcon 9 first stage, delays new legs for NASA robonaut
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.