Tag: Gaia
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Space Science in 2026: New lunar explorers, Mars missions, and space telescopes
With many missions on the manifest, the new year promises to be packed with space science. Two interplanetary spacecraft will arrive at their destinations as another Mars window opens in late 2026. Meanwhile, multiple space telescopes have their launch dates set for this year, and the schedule promises an increased cadence for lunar missions. The…
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Gaia detects more than 350 possible asteroid moons
Astronomers have found more than 350 possible moons around asteroids by analyzing data from the European Space Agency’s Gaia space telescope. While asteroids known to have moons, also known as binary asteroids, have been studied by Gaia before, this is the first time the telescope has been used to discover new binary asteroids. “Binary asteroids…
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How the Webb and Gaia missions bring a new perspective on galaxy formation
In a feat of galactic archeology, astronomers are using ever more detailed information to trace the origin of our galaxy—and to learn about how other galaxies formed in the early stages of the Universe. Using powerful space telescopes like Gaia and James Webb, astronomers are able to peer back in time and look at some…
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Using Hubble, researchers measure the mass of a single white dwarf for the first time
Of the trillions of stars scattered throughout the universe, one of the most common are the white dwarfs, which are the dormant, burned out, and leftover cores of low/medium mass stars. For decades, scientists have only measured the masses of white dwarfs within binary star systems. While these measurements provide insight into the true masses…
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Data from ESA’s Gaia mission reveals our Sun’s future and past
On June 13, the third major data release from the European Space Agency’s (ESA) Gaia mission revealed details about the past and future of our solar system’s star, the Sun, by using data collected by Gaia on stars of similar mass and composition to our Sun. Gaia is a star mapping mission and collects massive…
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How ‘Big Data’ could help SETI researchers intensify the search for alien civilizations
Artwork shows the Gaia spacecraft against the background of the Milky Way. (ESA Illustration / D. Ducros) Could far-off aliens be sending out signals telling us they exist? If so, how would we know where to look? Researchers focusing on the search for extraterrestrial intelligence, or SETI, have laid out a new strategy for focusing…
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Gaia probe maps the comings and goings of galaxy’s stars – and scientists go gaga
A newly released image from the European Space Agency’s Gaia star-mapping mission shows a full-sky view of our Milky Way galaxy and neighboring galaxies in color. (ESA / Gaia / DPAC) The European Space Agency has released the world’s most exhaustive star catalog, pinpointing the positions of nearly 1.7 billion stars. Today’s release, based on…
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New Horizons’ next target might be a binary pair
One artist’s concept of Kuiper Belt object 2014 MU69, the next flyby target for NASA’s New Horizons mission. This binary concept is based on telescope observations made at Patagonia, Argentina, on July 17, 2017, when MU69 passed in front of a star. New Horizons theorize that it could be a single body with a large…
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New Horizons to continue mission of discovery with Kuiper Belt encounter
Artist’s impression of NASA’s New Horizons spacecraft encountering a Kuiper Belt object. Credit: NASA/JHUAPL/SWRI/Alex Parker Scientists planning the the next phase of NASA’s New Horizons mission, a robotic craft that completed the first exploration of Pluto in 2015, are going into the flyby of a frozen, faraway city-sized clump of rock on New Year’s Day…
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Astronomers round up the unusual suspects for ‘alien megastructure’ star
This illustration shows a star behind a shattered comet. (Credit: NASA / JPL-Caltech) That mysterious “alien megastructure” star is still a mystery, but the most plausible explanations appear to be dense patches of interstellar gas or dust that just happened to pass in front of the star. That’s the upshot of analyses conducted by the…