A recently discovered asteroid, named 2024 YR4, is now the riskiest asteroid ever detected. NASA has calculated that the space rock has a 3.1% chance of hitting Earth in 2032.

The surprising January heat record coincides with a new study by a climate science heavyweight, former top NASA scientist James Hansen, and others arguing that global warming is accelerating. It’s a claim that’s dividing the research community.

On Monday night, the year’s first full moon will pass in front of Mars and cause the planet to momentarily disappear from view.

The mission team knew it wouldn’t receive any communications from the spacecraft during its closest pass of the sun. Now, the team members will await more detailed data from Parker about the spacecraft’s status that’s expected to return to Earth on Jan. 1.

They’ve now been on the space station more than 11 weeks, however, and NASA announced Saturday that they would remain there through early 2025. 

They’ve now been on the space station more than 60 days, however, and NASA raised the possibility this week that they may remain there through early 2025 because of ongoing issues with their Starliner capsule.

The Perseid meteor shower is back for its annual sky show, with peak viewing Sunday night into Monday morning.

Many kids dream of blasting off into space one day — and Katya Echazarreta was no exception. As the first Mexican-born woman to travel to space, she is dedicated to showing other women the sky’s the limit when it comes to reaching their goals.

A total solar eclipse is set to move across the United States Monday afternoon with the path of totality sweeping from Texas up to Maine. Watch as it unfolds with NASA scientists. 

The Great American Eclipse is almost here. Here’s how to make the most of the experience in Illinois and the Chicago area.

During their first-ever spacewalk, astronauts Jasmin Moghbeli and Loral O’Hara spent hours outside the International Space Station, successfully replacing hardware on the station’s solar array. But a tool bag became untethered and is now orbiting Earth.

Smoke from raging wildfires in western Canada has reached Chicago, creating hazy skies and making for redder sunrises and sunsets.

Known as one of the oldest-recorded meteor showers, the Lyrids are expected to produce 10 to 15 meteors per hour for three nights centered around its peak of 8:06 p.m. CST on Saturday, according to EarthSky.

It’s been less than six years since a total solar eclipse cut across the U.S., from coast to coast. That was on Aug. 21, 2017. The next one is predicted to hit Illinois.

Headlines spun out of control when it came to new research results on the Earth’s core. In other news, narwhals have had it with noisy neighbors.

According to NASA, the comet would last have been seen in the night sky more than 10,000 years ago — millennia before the birth of human civilization — and it may never pass this way again.