Friday's science stories


Dan Primack
Nov 19, 2021 - Science

Sierra Space raises $1.4 billion at $4.5 billion valuation

Illustration of an 'S' as a satellite.
Illustration: Aïda Amer/Axios

Amazon deforestation in Brazil surges to worst in 15 years

General view of a burnt area of the Amazonia rainforest in the surroundings of the city of Porto Velho, Rondonia state, Brazil, on September 15, 2021.
General view of a burnt area of the Amazonia rainforest in the surroundings of the city of Porto Velho, Rondonia state, Brazil, on September 15, 2021. Photo: Mauro Pimentel/AFP via Getty Images

Fear and loneliness caused surge of early pandemic calls for help

Miriam Kramer
Nov 18, 2021 - Science

A new kind of propulsion could aid in space exploration

A view of the thruster as it fires in space
A view of the flight model of the thruster. Photo: ThrustMe

British Columbia declares state of emergency over floods

 The flooded Sumas Prairie in Abbotsford, British Columbia, Canada, on Wednesday, Nov. 17, 2021.
The flooded Sumas Prairie in Abbotsford, British Columbia, Canada, on Nov. 17. Photo: Taehoon Kim/Bloomberg via Getty Images