"I have looked farther into space than ever a human being did before me."

— William Herschel

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Updated: 1 week 21 hours ago

We're within 3 years of reaching a critical climate threshold. Can we reverse course?

Mon, 08/18/2025 - 11:00am
A report published in June found that the world only has three years before it crosses the 1.5 C climate target. So what should we do now?
Categories: Astronomy

SpaceX's Super Heavy booster will fly with fresh 'grid fins' | Space photo of the day for Aug. 18, 2025

Mon, 08/18/2025 - 10:00am
Like birds returning to their nests, these feather-like grid fins help steer rockets back down through the atmosphere toward their landing zones.
Categories: Astronomy

Northern lights may be visible in these 10 states overnight Aug. 19-20

Mon, 08/18/2025 - 9:41am
Auroras may be visible from Alaska to Washington as an incoming speedy solar wind could spark geomagnetic storm conditions overnight.
Categories: Astronomy

Hubble telescope uncovers rare star born from cosmic collision: 'A very different history from what we would have guessed'

Mon, 08/18/2025 - 8:00am
"It's a discovery that underlines things may be different from what they appear to us at first glance."
Categories: Astronomy

Don't miss Mercury, the moon and the Beehive Cluster align in a special August morning sky show

Mon, 08/18/2025 - 6:00am
A rare August morning alignment brings Mercury, a thin crescent moon and the Beehive Cluster together in the predawn sky. Here's how you can see it for yourself.
Categories: Astronomy

How much has Mercury shrunk?

Sun, 08/17/2025 - 11:00am
Mercury is still shrinking as it cools in the aftermath of its formation; new research narrows down estimates of just how much it has contracted.
Categories: Astronomy

See a trio of spectacular star clusters brighten the summer sky in August 2025

Sun, 08/17/2025 - 10:00am
The Hyades, Pleiades and Hercules star clusters make for excellent targets in the late summer months.
Categories: Astronomy

Mercury quiz: How well do you know the Swift Planet?

Sun, 08/17/2025 - 9:00am
This quiz will explore the facts, the fun and the fascinating quirks of our solar system’s speedster, Mercury
Categories: Astronomy

How the nature of environmental law is changing in defense of the planet and the climate

Sun, 08/17/2025 - 8:00am
The effects of Earth's changing climate is driving up the number of legal suits related to environmental issues
Categories: Astronomy

NASA and Google test AI medical assistant for astronaut missions to the moon and Mars

Sun, 08/17/2025 - 6:00am
Google and NASA are trialing an AI-powered medical assistant that could help astronauts care for themselves when mission control is out of reach.
Categories: Astronomy

Moon quiz: For all lunatics

Sat, 08/16/2025 - 12:00pm
Think you know Earth's moon? Test your knowledge in a lunar quiz!
Categories: Astronomy

Scientists just recreated the universe's first ever molecules — and the results challenge our understanding of the early cosmos

Sat, 08/16/2025 - 11:00am
In a first, scientists have recreated the formation of the first ever molecules in the universe to learn more about early star formation.
Categories: Astronomy

This Week In Space podcast: Episode 173 — The Return of the Malik

Sat, 08/16/2025 - 10:11am
On Episode 173 of This Week In Space, Rod Pyle and and Tariq Malik look back at the week in space news.
Categories: Astronomy

If everyone in the world turned on the lights at the same time, what would happen?

Sat, 08/16/2025 - 10:00am
Beyond powering lights, it's also important to think about where all that light would go.
Categories: Astronomy

Titan darkens Saturn in rare shadow transit on Aug. 19: Here's how to see it

Sat, 08/16/2025 - 9:00am
The second largest moon in the solar system will cast its shadow over Saturn on Aug. 19.
Categories: Astronomy

Tiny devices propelled by sunlight could explore a mysterious region of Earth's atmosphere

Sat, 08/16/2025 - 8:00am
"Being able to send something out there would enable us to take a lot more precise data than we currently can."
Categories: Astronomy

SpaceX aims to launch Starship Flight 10 test flight on Aug. 24

Fri, 08/15/2025 - 5:55pm
SpaceX is targeting Aug. 24 for the 10th Flight Test for its Starship rocket, following delays from a pad accident and May's failed mission.
Categories: Astronomy

Blue Origin's 2nd New Glenn rocket launch will fly twin NASA Mars probes to space on Sep. 29

Fri, 08/15/2025 - 5:00pm
Blue Origin's powerful New Glenn rocket will launch NASA's ESCAPADE Mars mission no earlier than (NET) Sep. 29.
Categories: Astronomy

NASA wants new spacecraft to fly to hard-to-reach orbits around Earth and in deep space

Fri, 08/15/2025 - 4:00pm
NASA has awarded $1.4 million to six companies, to further their ideas about how to get vehicles farther into space cheaply and efficiently.
Categories: Astronomy

Russia to launch 75 mice, 1,000 fruit flies on Aug. 20 to study spaceflight effects

Fri, 08/15/2025 - 3:00pm
Russia is readying its Bion-M No. 2 biosatellite for a planned Aug. 20 launch. The mission will send 75 mice and other specimens on a monthlong mission to Earth orbit.
Categories: Astronomy