In the early 1960s, Dutch astronomer Adriaan Blaauw observed stars moving at unusually high speeds moving through the Milky Way. These stars, as it turned out, were unbound objects that had been kicked out of the Milky Way and periodically looped back and forth through the disk. Blaauw proposed that these stars originated in binary systems and were ejected when the companion star collapsed and exploded off its outer layers in a supernova. By 2005, even faster runaway stars were observed, leading to the designation "hypervelocity stars."
Space News & Blog Articles
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NASA had 3 years to fix fuel leaks on its Artemis moon rocket. Why are they still happening?
NASA stopped short of completing a critical fuel test for its Artemis 2 SLS rocket because of hydrogen leaks that sound a lot like the problems they had during Artemis 1.
NASA's Perseverance Mars rover completes its 1st drive planned by AI
"The fundamental elements of generative AI are showing a lot of promise in streamlining the pillars of autonomous navigation for off-planet driving."
Is the Universe Older Than We Think? Part 1: The Cosmological Clock
This is Part 1 in a series on the age of the universe.
SpaceX grounds its Falcon 9 rocket after a problem with its upper stage. Will the Crew-12 astronaut mission be affected?
SpaceX has temporarily grounded its Falcon 9 rocket after an upper stage failed to deorbit as planned during a Feb. 2 launch. Will the issue affect the company's Crew-12 astronaut mission?
Red Giant Stars Can't Destroy All Gas Giants. Some Are Hardy Survivors
Aging stars can completely destroy their planets.
'It's insightful, it's informative.' Neil deGrasse Tyson on his 5-hour backyard audio chat with William Shatner (interview)
'He's wise and very well educated and so every turn of conversation is rich.'
'Yes Bueno!': The new Kinder Bueno Super Bowl LX ad is sweet sci-fi goodness (video)
'Armageddon's' William Fichtner stars in the brand’s first-ever Big Game commercial
Chilean Observatories Saved from Industrial Megaproject
The proposed installation — less than 10 miles from Paranal Observatory — sparked international concern. Now it’s canceled.
March full moon 2025: When, where and how to see the Worm Moon
Your guide to March's full Worm Moon, from peak times to skywatching highlights.
Hundreds of Bright Streaks Suggest Mercury’s Still Active
An AI search through decades-old spacecraft images reveals that Mercury may still be alive and kicking, geologically speaking.
February's 'rare planetary alignment' is coming — here's what to expect from the planet parade
Mercury, Venus, Neptune, Saturn, Uranus and Jupiter will appear together shortly after sunset on Feb. 28 — but is this the "planet parade" we've been waiting for?
Skywatching word search: Can you find these stargazing events?
From dazzling eclipses to rare planetary meet‑ups, the night sky is full of events worth looking up for. Hunt for the various events in our skywatching-themed wordsearch.
See the March Lunar eclipse in more detail for under $50! These binoculars are now even cheaper than on Black Friday
Our best family binoculars, the Celestron Cometron 7x50 binoculars, are now $13 cheaper on Amazon and are perfect for getting a better view of the night sky and all its wonders.
ESA's sustainability ambition
Video: 00:04:21
Space activities are unlike any others. They interact not just with Earth, but with three interconnected environments: Earth, Earth’s orbit, and the Moon and deep space. On Earth, we aim to reduce the space sector’s environmental impacts while maximising the societal and environmental benefits of our missions. In orbit, we manage space debris and collision risks to maintain safe and secure operations. For the Moon and deep space, we are laying the foundations to minimise the impact of our missions on and around other celestial bodies.
How to use the moon on Feb. 4 to plan your view of March's total lunar eclipse
A February moon offers a practical preview of where to look for March's total lunar eclipse.
Neutron star photobombs baby star | Space photo of the day for Feb. 3, 2026
When young stars mix with neutron stars, things get messy.
A blood moon is coming: 1 month until a total lunar eclipse takes to the skies over North America
The moon will take on a dramatic blood red hue during the total lunar eclipse on March 3.
Reading the Moon’s Diary, One Speck of Dust at a Time
Magnetism on the Moon has always been a bit confusing. Remote sensing probes have noted there is some magnetic signature, but far from the strong cocoon that surrounds Earth itself. Previous attempts to detect it in returned regolith samples blended together all of the rocks in those samples, leading to confusion about the source - whether they were caused by a strong inner dynamo in ages past, or by powerful asteroid impacts that magnetized the rocks they hit. A new study from Yibo Yang of Zhejiang University and Lin Xing of the Chinese Academy of Sciences, published recently in the journal Fundamental Research, shows that the right answer seems to be - a little of both.
NASA delays Artemis 2 moon launch to March after encountering issues during fueling test
NASA has delayed its Artemis 2 moon launch until March at the earliest, after encountering some issues during a key prelaunch exercise known as a wet dress rehearsal.
Elon Musk lays out a new vision of AI satellites as SpaceX acquires xAI
SpaceX CEO Elon Musk says he’s making space-based artificial intelligence the “immediate focus” of a newly expanded company that not only builds rockets and satellites, but also controls xAI’s generative-AI software and the X social-media platform.
