Category Astronomy/Space

Rare exoplanet orbits twin stars in ‘Star Wars’-like twist

Astronomers find rare twist in exoplanet's twin star orbit
A hypothetical office overlooking the Paranal Observatory in Chile, with the European Southern Observatory’s VLT visible with its laser on the hill, and the four small SPECULOOS telescopes nearer the foreground. In the sky is a depiction of the orbital configuration of the 2M1510 system with the two brown dwarf stars in red orbiting one another, and the inferred exoplanet on a polar orbit in white. Within the office, a poster celebrating the original discovery of 2M1510’s two brown dwarfs is on the wall, while diagrams and patterns showing the apsidal precession of the brown dwarf’s orbit caused by the planets are shown on the table the roof and the floor. Credit: University of Birmingham / Amanda Smith

Astronomers have discovered a planet that orbits at a 90-degree angle around a rare...

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Our closest neighboring galaxy may be being torn apart

Velocities of massive star candidates within the SMC shown as vectors. The colors of the arrows represent the direction of motion. Relative to the LMC, located at the bottom left of the image, most red arrows show movement towards the LMC, whereas most light blue arrows show movement away from the LMC, suggesting they are being pulled apart. (credit: Satoya Nakano)

Our closest neighboring galaxy may be being torn apart. Is the nearest galaxy to ours being torn apart? Research suggests so. A team led by Satoya Nakano and Kengo Tachihara at Nagoya University in Japan has revealed new insights into the motion of massive stars in the Small Magellanic Cloud (SMC), a small galaxy neighboring the Milky Way...

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A slowly spinning universe could solve the Hubble tension

The universe could be spinning
The Whirlpool Galaxy, M51, is a spiral galaxy located 31 million light-years away. Credit: NASA

A new study in Monthly Notices of the Royal Astronomical Society by researchers including István Szapudi of the University of Hawaiʻi at Mānoa Institute for Astronomy suggests the universe may rotate—just extremely slowly. The finding could help solve one of astronomy’s biggest puzzles.

“To paraphrase the Greek philosopher Heraclitus of Ephesus, who famously said ‘panta rhei’ (everything moves), we thought that perhaps panta kykloutai—everything turns,” said Szapudi.

Current models say the universe expands evenly in all directions, with no sign of rotation. This idea fits most of what astronomers observe...

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Solar cells made of moon dust could power future space exploration

 Overview over lunar solar energy provision strategies

The same dirt that clings to astronauts’ boots may one day keep their lights on. In a study publishing April 3 in the Cell Press journal Device, researchers created solar cells made out of simulated Moon dust. The cells convert sunlight into energy efficiently, withstand radiation damage, and mitigate the need for transporting heavy materials into space, offering a potential solution to one of space exploration’s biggest challenges: reliable energy sources.

“The solar cells used in space now are amazing, reaching efficiencies of 30% to even 40%, but that efficiency comes with a price,” says lead researcher Felix Lang of the University of Potsdam, Germany...

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