Probabilistic Assessment of Tunguska-Scale Asteroid Impacts

Abstract: The Tunguska meteor airburst that felled trees across >2000 sq km of Siberian forest in…

Fiber-Based Laser MOPA Transmitter Packaging for Space Environment

Abstract: NASA’s Goddard Space Flight Center has been developing lidar to remotely measure CO2 and CH4…

Heathrow campaigners lose challenge against third runway

High Court judges rule in favour of the government’s decision to approve airport expansion plans. …

Middle Pleistocene human skull reveals variation and continuity in early Asian humans

A team of scientists led by Liu Wu and Wu Xiujie from the Institute of Vertebrate…

New giant virus may help scientists better understand the emergence of complex life

The discovery of the Medusavirus holds clues to the evolution of more complex life. A paper…

Energy Department says it will remove plutonium from Nevada

U.S. Energy Secretary Rick Perry is pledging to expedite the removal of weapons-grade plutonium secretly hauled…

Hera’s CubeSat to perform first radar probe of an asteroid

Small enough to be an aircraft carry-on, the Juventas spacecraft nevertheless has big mission goals. Once…

Hera’s CubeSat to perform first radar probe of an asteroid

Small enough to be an aircraft carry-on, the Juventas spacecraft nevertheless has big mission goals. Once…

Swarm helps explain Earth’s magnetic jerks

Our protective magnetic field is always restless, but every now and then something weird happens –…

NASA Warns About Threat Of Meteors

NASA Administrator Jim Bridenstine said meteor impacts happen more frequently than the general public knows.