In the leading model of cosmology, most of the universe is invisible: a combined 95% is made of dark matter and dark energy.

As a space reporter for The New York Times, I follow what’s happening in the stars, including eclipses, meteor showers and ...

For more than a decade, NASA’s Fermi Gamma-ray Space Telescope has quietly mapped the high-energy sky, searching for subtle ...

International Dark Sky Week (IDSW) - April 21 - 28, 2025 - is a worldwide event that draws attention to light pollution, promotes simple solutions to mitigate the issue, and celebrates the ...

SEQUIM — International Dark Sky Week, billed as “a worldwide celebration of the dark and natural night” by Dark Sky International, will be celebrated today through April 28. During the past century, ...

Here’s everything you need to know about astrophotography in December 2025: ...

December nights are the longest — and often some of the coldest — of the year. While some may dread December’s darkness, ...

Oregon is suddenly abuzz with dark skies, a campaign that has naturally led right up to Dark Sky Week. This year, April 2-8 is not only International Dark Sky Week, a celebration of natural light and ...

International Dark Sky Week is April 21-28, 2025. Michigan offers dark sky parks throughout the state for ideal stargazing. Stargazers, International Dark Sky Week is here and now's your chance to ...

When you go outside on a clear, moonless night, you can see not only lots of stars but also the black space between them—literally space, in this case. Given that you can see stars and that the sky is ...