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PETM Caused by Passing Star?

Could a passing rogue star have caused the PETM? Could other astrophysical phenomena been primary drivers of paleoclimate change?

United statesUnited kingdomNathan kaibDavid middletonJohn tyndallSvenmarsk veizerShaviv veizerSean raymondMauna loaSeann raymondRoberth rogerMichael arthur katherine freemanA revised model of atmosphericDay levels of atmosphericLaboratory of astrophysics bordeauxC columbia climate school

What would happen to Earth if a rogue star came too close?

What would happen to Earth if a rogue star came too close?
phys.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from phys.org Daily Mail and Mail on Sunday newspapers.

Sean raymondKappa cassiopeiaeSeann raymondVanderbilt universityScientific researchNational centerMonthly notices of the royal astronomical societyDynamical simulationsStellar encounters withinMonthly noticesRoyal astronomicalAstrophysique de bordeauxWill earthMilky waySolar system

Why the heck is Earth wet?

Our planet started off bone dry. Then space sent ice balls and 'water balloons.'

Seann raymondHumberto campinsUniversity of central floridaFrance laboratory of astrophysics bordeauxEuropean space agency rosettaCentral floridaEuropean space agencyRed planetSolar systemHumberto campinsSeann raymondWater balloons

Paper suggests there could be captured planets in the Oort cloud

Paper suggests there could be captured planets in the Oort cloud
phys.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from phys.org Daily Mail and Mail on Sunday newspapers.

Seann raymondMonthly notices of the royal astronomy societyOort cloudMonthly noticesRoyal astronomy society

Pulling the [gas] rug out from under the Solar System

Pulling the [gas] rug out from under the Solar System
astrobites.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from astrobites.org Daily Mail and Mail on Sunday newspapers.

Setha jacobsonBeibei liuSeann raymondZhejiang institute of modern physicsZhejiang universityFirst author institutionZhejiang instituteModern physicsSolar systemImage creditLate heavy bombardment