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.
On Saturday, Oct. 14, Chicago astronomer Joe Guzman advises Chicagoans to turn their eyes to the skies — but only with proper protection — to witness a partial solar eclipse.
The super blue moon also means unusually high tides, which could worsen the impact of Hurricane Idalia.
Earendel is so distant that the starlight glimpsed by the Webb telescope was emitted within the first billion years of the universe. The universe is estimated to be about 13.8 billion years old.
The cosmos is offering up a double feature in August: a pair of supermoons. Catch the first show Tuesday night, Aug. 2, as the full moon rises in the southeast.
Drew Gronewold, an expert in hydrological modeling at the University of Michigan, presented his annual update on Great Lakes’ water levels. Lake Michigan is holding steady, but for how long?
Millions of birds will pass over the Chicago region this weekend as migration kicks into high gear. Want to be a good host? Turn off your lights.
Spring is always an iffy proposition in Chicago, but it officially begins Monday.
In what’s being dubbed a celestial “kiss,” Jupiter and Venus will appear to nearly touch Wednesday.
The Green Comet is making its closest pass to Earth Wednesday night and the skies are looking clear enough for Adler Planetarium to host a virtual viewing party.
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.
Enjoy a cosmic Christmas, with all five naked-eye planets visible in the sky. The moon, Mercury and Venus will form a sparkling triangle on Christmas Eve.
Sky watchers will have their eyes peeled Wednesday night for a rare-ish celestial event: an “eclipse” of Mars.
Election Day 2022 will kick off with a pre-dawn total lunar eclipse. There won't be another like it until March 2025.
Jupiter is making its closest approach to Earth since 1963 on Monday night, and the views should be especially spectacular.
While this year's that display might be a little harder to see than in past years, Chicago Astronomer Joe Guzman says it’s still worth getting out there and looking up.