NOAA's CCOR-1 coronagraph captured the blast that showed the sun's raw power in action.

Looking for a sky event this week? Check out our full Sky This Week column. November 2: Neptune nestles between Saturn and the Moon Let's catch up with Venus in the morning sky; Earth's sister planet ...

The worst result, after buying shares in a company (assuming no leverage), would be if you lose all the money you ...

Low clouds matter most for albedo and sunlight reflection. They bounce a lot of sunlight back to space. Last year, low cloud ...

Here's where, when, and how to watch Orionids meteor shower and the Comet Lemmon against the darkness of tonight's sky and ...

The best time to see a shooting star is on Nov. 16 and 17, when the Leonids peak during an almost completely dark waning crescent moon. The meteors from the Leonids can be very bright and colorful ...

3I/ATLAS is named for its status as one of three interstellar objects ever discovered in our cosmic neighborhood, as well as ...

An ominous-looking nebula named NGC 246 lurks in the constellation Cetus about 1,600 light-years away from Earth. It is ...

Mercury currently appears as a bright "evening star" in the southwestern sky at sunset. Mercury will reach its greatest ...

A new study reveals that the largest lunar crater, South Pole-Aitken basin, was formed by an oblique impact that shaped the ...

Phenology is the study of seasonal changes in plants and animals from year to year, such as when flowers bloom, birds nest or ...

As of Monday, Oct. 7, the moon phase is Full Moon; this means it is 100% lit up. NASA's Daily Moon Observation confirms this.