Astronomers dig deep to find tiny dangerous space debris

In a new study, published in the Journal of the Astronautical Sciences, Warwick researchers led an international effort to uncover some of the faintest debris in geosynchronous orbit ever observed, finding fragments as small as 5 centimeters (2 inches) and obtaining valuable data to characterize their behavior.

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Image: Hubble captures star-studded cluster

This image from NASA’s Hubble Space Telescope showcases Messier 3 (M3), one of the Milky Way’s most massive globular clusters, or spherical collections of gravitationally bound stars.

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Unraveling a long-standing solar mystery: The extreme thinness of the sun’s tachocline layer

Researchers are closer to unraveling a longstanding solar mystery surrounding the extreme thinness of the sun’s tachocline layer of strong shearing motion—a region believed to be critical for creating the violent eruptions of high-energy particles and radiation from the sun known as “space weather.”

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Astronomers build a one-stop universe data hub

Astronomers spend much of their time mapping the universe, but until now their results have been collected and archived in so many different ways that the data can’t talk to each other.

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From the lab to the moon: Lunar cement alternative survives 6 months on ISS and returned stronger in some tests

Building material samples from the University of Delaware spent six months mounted outside the International Space Station, where the harsh conditions of low Earth orbit tested their limits.

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Hidden jet from a ‘missing-link’ black hole lights up the radio sky

Astronomers using the U.S. National Science Foundation Very Large Array (NSF VLA) have detected an extraordinary burst of radio light from a rare cosmic event in which an intermediate-mass black hole tears apart a star, revealing what appears to be the off-axis afterglow of a powerful jet. The research is published in The Astrophysical Journal […]

Black hole collisions may follow entropy law, offering simpler remnant predictions

When two black holes orbit each other, they eventually spiral inward and collide in one of the most violent phenomena in the universe. The event is so energetic that it significantly distorts the universe around it. It emits gravitational waves—ripples in the fabric of spacetime—that are strong enough to be detected with precision instruments on […]

JWST’s ‘overmassive’ early black holes may not be so massive after all

Astronomers studying a population of unusually X-ray-silent and overmassive black holes discovered by the James Webb Space Telescope have found that they may not be as massive as they appear. The new paper, outlining a plausible scenario that would produce such black holes, was published in Astronomy & Astrophysics on June 19.

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Another success for Hayabusa 2 as it completes a flyby of asteroid Torifune

Hayabusa 2’s primary mission is now well in the past. JAXA’s asteroid-sampling spacecraft rendezvoused with asteroid Ryugu in June 2018. It studied the asteroid for 1.5 years and gathered a sample that was returned to Earth in December 2020.

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What to know about the total solar eclipse due in August

Day will briefly turn into night across a swath of northern Spain on Aug. 12, when the moon will completely cover the sun during a rare total solar eclipse.

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‘Unique event’: Solar eclipse fever fills empty Spain

As a child, Enrique Bordallo would gaze in awe at the starry night sky in rural Spain. Next month’s solar eclipse has now made his passion a popular obsession.

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NASA’s New Horizons spacecraft wakes from its longest hibernation in good health

Following its longest hibernation period ever of nearly a year, NASA’s New Horizons spacecraft has emerged in good health and is ready to begin transmitting science data gathered in the distant Kuiper Belt far beyond Pluto.

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Galaxy mergers aren’t always obvious

The galaxy Centaurus A is about 11 million light-years away and is the fifth-brightest galaxy in the sky. Because it’s so bright, it’s been studied extensively by amateur and professional astronomers alike. Also called NGC 5128, it’s a starburst galaxy, meaning it’s forming stars at a rapid rate.

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Baseline tool could separate alien life signals from geology on ocean worlds

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of biology because they are often produced by living microbes. However, scientists can be misled because certain geological processes can produce chemical signatures identical to those of living organisms.

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Much of Earth’s ‘space dust’ may come from unidentified near-Earth asteroids

Like a shelf in an old house, the Earth collects a lot of dust from its surroundings. This “space dust” is mostly made up of micrometeorites that survive atmospheric entry and provides researchers with a cheap and easy way to obtain samples to study our cosmic neighbors. However, it can be difficult to determine which […]