On March 12, 2025, Hera — ESA’s first Space Safety mission — came to within 5,000 km of the surface of Mars and 1,000 km of Deimos. While performing the flyby, the spacecraft made the first use of its payload for scientific purposes…
Category: 2. Space
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TOI-1453: Sub-Neptune in system of two exoplanets
Astronomers have discovered two exoplanets around TOI-1453, a star about 250 light years away. These two exoplanets, a super-Earth and a sub-Neptune, are common in the galaxy, yet are absent from our system. This discovery paves the way for…
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Unexpected molecules in a cold atmosphere
The atmospheres of brown dwarfs are chemistry laboratories for investigating their formation mechanisms and also those of gas giant exoplanets. With JWST/MIRI, Elisabeth Matthews and colleagues observed a T-type brown dwarf binary system, WISE…
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The varying accretion at PDS 70
PDS 70 is a very young star of around 5 Myr of age that hosts two accreting giant exoplanets in wide orbits (PDS 70 b at ~21 au and PDS 70 c at ~34 au) embedded in its protoplanetary disk. Both exoplanets have been directly imaged and thus…
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Saturn Now Has 274 Moons after New Discovery
A team of astronomers from Taiwan, Canada, the United States, and France has observed 128 additional moons orbiting the gas giant Saturn, bringing its total number of confirmed moons to 274. The International Astronomical Union recognized the…
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Detailed map of dust in the Milky Way
Astronomers from the Max Planck Institute for Astronomy have constructed the first detailed 3D map of the properties of cosmic dust in our home galaxy. For their map, the astronomers used 130 million spectra from ESA’s Gaia mission, results from…
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Saturn has a whopping 274 moons ― scientists want to know why
Saturn has a whopping 274 moons ― scientists want to know why
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Termination of bottom-up interstellar aromatic ring formation at C6H5+
Allamandola, L., Boersma, C., Lee, T., Bregman, J. & Temi, P. PAH spectroscopy from 1 to 5 μm. Astrophys. J. Lett. 917, L35 (2021).
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Tielens, A. G. Interstellar…
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DART impact ejecta yields insights
Masatoshi Hirabayashi and colleagues, by simulating the initial plume, determined that the effectiveness of the momentum transfer along the orbit track was reduced by the curved surface of Dimorphos, attaining only 44 ± 10% of that had the…
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