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What is time, and why does it move forward?

What is time, and why does it move forward? Cosmologist Thomas Kitching of University College London explains how the arrow of time points to the future.

EarthSky Voices

September 19, 2021

Wildfire threatens a SETI telescope in California

Wildfire threatens a SETI telescope. The Allen Telescope Array in California was built specifically for SETI. Scientists and engineers evacuated.

Deborah Byrd

September 11, 2021

Here are the 2022 Breakthrough Prize winners

2022 Breakthrough Prize winners made discoveries leading to Covid-19 vaccines, treatments for neurological diseases, and more precise quantum clocks.

Editors of EarthSky

September 10, 2021

Reptiles as pets: dispelling the myths

Increasingly, people oppose owning reptiles as pets, believing they pose a danger to public health or are too cold to love. Why do reptiles get a bad rap?

EarthSky Voices

September 1, 2021

Nuclear fusion ignition: Big laboratory breakthrough

Nuclear fusion ignition was triggered in a lab for the first time, and it could lead the way to clean energy and insights into the Big Bang.

Kelly Kizer Whitt

August 26, 2021

ESA screens a record number of astronaut hopefuls

Astronaut hopefuls are being asked for their patience as ESA processes over 23,000 applications to its astronaut recruitment; a number that far exceeds the agency’s most optimistic forecasts.

Lia De La Cruz

August 24, 2021