Astronomers have finally weighed an isolated white dwarf, or the shriveled husk of a dead star, using a strange phenomenon predicted by Einstein's theory of relativity decades ago.

In their new research, the study authors used positioning data from the European Space Agency’s Gaia mission to predict precisely when LAWD 37 would pass in front of the distant star, allowing the team to prepare for the gravitational lensing event accordingly.

Based on the distant star’s slight movement in the sky, the team calculated that the white dwarf is approximately 56% as massive as the sun, which agrees with existing models and predictions for what’s going on inside these strange stellar remnants.

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In their paper published in Proceedings of the National Academy of Sciences, the group describes their work, which involved studying brain capabilities in the species of fish.

The bluestreak cleaner wrasse specializes in removing dead skin and other materials from other fish or sea creatures.

More information: Masanori Kohda et al, Cleaner fish recognize self in a mirror via self-face recognition like humans, Proceedings of the National Academy of Sciences(2023).

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Vulcan Centaur will replace ULA's long-standing Atlas V and Delta IV rockets, which are certified for commercial, government and national security missions by the U.S. Space Force.

The mission will loft two demonstration satellites for Amazon's Project Kuiper broadband constellation, along with a Celestis Memorial Spaceflight payload and a commercial moon lander called Peregrine.

Elizabeth's reporting includes an exclusive with Office of the Vice-President of the United States, speaking several times with the International Space Station, witnessing five human spaceflight launches on two continents, working inside a spacesuit, and participating in a simulated Mars mission.

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In 2015, when NASA's New Horizons spacecraft encountered the Pluto-Charon system, the Southwest Research Institute-led science team discovered interesting, geologically active objects instead of the inert icy orbs previously envisioned.

These new models suggest that when the moon's internal ocean froze, it may have formed the deep, elongated depressions along its girth but was less likely to lead to cryovolcanoes erupting with ice, water and other materials in its northern hemisphere.

Fractures in the ice shell may be the initiation points of these canyons along the global tectonic belt of ridges that traverse the face of Charon, separating the northern and southern geological regions of the moon.

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Ghostly green Comet ZTF is an astronomical throwback to the last days of the Neanderthals, and it’s not too late to catch a glimpse of it in the northern sky this week.

The last time comet C/2022 E3 (ZTF) passed through the inner Solar System, Neanderthals and Homo sapiens were still neighbors in parts of Ice Age Europe — and we may be the last members of our species to see it.

Comet ZTF is already starting the outbound leg of its long journey, headed back to the cold, dark outskirts of our Solar System after passing within 26 million miles of Earth on February 1.

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The Indian Space Research Organisation (Isro) has finalised the coordinates of three possible landing sites for its third lunar mission – Chandrayaan-3 – expected to be launched later this year.

All the probable landing sites are on the moon’s south polar region on the side facing earth, senior scientists from the space agency said on Tuesday.

Chandrayaan-2 was successfully launched and inserted into lunar orbit in 2019, but its lander crash-landed on the moon’s surface when it deviated from its trajectory while attempting to land on September 6, 2019, due to a software glitch.

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