Spectacular astronomical events like meteor showers and partial lunar eclipses will be visible across the country this summer ...

How “Secret” Cold War Nuclear Waste Is Melting into the Arctic Water Supply. Their buried secrets from the days of nuclear warfare were covered by what is ca ...

Mercury was once believed to be a dead and lifeless world, but new discoveries revealed by NASA missions have transformed the ...

Despite being the closest planet to the sun, Mercury has thick deposits of ice at its poles, and now we may understand the ...

Even as NASA continues to try to restore contact with the MAVEN spacecraft after it fell silent in late 2025, scientists ...

The source of the significant water ice deposits hidden in Mercury's polar regions has been a topic of debate among ...

SpaceX launched its biggest, most powerful Starship yet on a test flight Friday, an upgraded version that NASA is counting on ...

A Justice Department indictment against the Southern Poverty Law Center is part of a “top-down” campaign of retribution ...

SpaceX got within a half-minute of launching its newest and biggest Starship on Thursday evening before a cascade of problems ...

Photographers captured the razor-thin lunar crescent just a few days after the new moon phase on May 16, as sunlight ...

The largest moon in the solar system — Jupiter’s Ganymede — has a unique and inexplicable magnetic field. New research could finally explain it: the moon is heating up.

Sky This Week is brought to you in part by Celestron. Friday, May 22Uranus is in conjunction with the Sun at 10 A.M. EDT, so ...