Category Astronomy/Space

X-ray and Radio go ‘Hand in Hand’ in New Image

X-ray: NASA/CXC/Univ. of Hong Kong/S. Zhang et al.; Radio: ATNF/CSIRO/ATCA; H-alpha: UK STFC/Royal Observatory Edinburgh; Image Processing: NASA/CXC/SAO/N. Wolk

In 2009, NASA’s Chandra X-ray Observatory released a captivating image: a pulsar and its surrounding nebula that is shaped like a hand. Since then, astronomers have used Chandra and other telescopes to continue to observe this object. Now, new radio data from the Australia Telescope Compact Array (ATCA) has been combined with Chandra’s X-ray data to provide a fresh view of this exploded star and its environment, to help understand its peculiar properties and shape.

At the center of this new image lies the pulsar B1509-58, a rapidly spinning neutron star that is only about 12 miles in diameter...

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Strange spotted rock on Mars could reveal signs of ancient life

The original, untreated sample Heinz picked up on his Sedona hike, with spots similar to spots on the Mars Sapphire Canyon rock. Credit: Nicholas Heinz

Learning how to study the leopard-like spots found on both terrestrial and Martian rocks can prepare scientists for when the real samples arrive from space. A curious red Martian rock nicknamed Sapphire Canyon has scientists excited, as its spotted appearance hints at possible organic origins. On Earth, researchers tested a powerful laser technique, O-PTIR, on a similar rock found by chance in Arizona, proving it can rapidly and precisely reveal a material’s chemical makeup...

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Robots team up to explore planetary lava caves

Robot team used during the Lanzarote field trial along with scale bar. (A) Heterogeneous robot team. (B) Robot capabilities and used materials. Credit: Science Robotics (2025). DOI: 10.1126/scirobotics.adj9699

In the not-too-distant future, the search for signs of life on Mars and the moon could see the next generation of robots exploring a new frontier: subsurface lava tubes. These missions could also help us determine the best locations for establishing human bases.

To see whether this could be feasible, scientists tested three autonomous robots in a lava cave on the Spanish island of Lanzarote.

Lava tubes are deep underground caves formed by volcanic activity and are found in various parts of the world, as well as on Mars and the moon...

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Astronomers discover new type of supernova triggered by black hole-star interaction

A study led by the Center for Astrophysics | Harvard & Smithsonian (CfA) has captured the explosive interaction between a black hole and a nearby massive star (blue), as depicted in this artist’s conception. As the separation between the star and the black hole decreased, the black hole’s intense gravity pulled gas and dust off of the star into a disk. Before the star was able to swallow the black hole, gravitational stress from the black hole triggered the star’s explosion. Collisions between the stellar explosion and shells of material from earlier interactions located above and below the disk powered a dramatic re-brightening event...
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