Asteroid’s Comet-like Tail Is Not made of Dust, solar observatories reveal

The Large Angle and Spectrometric Coronagraph (LASCO) on the Solar and Heliospheric Observatory (SOHO) imaged asteroid Phaethon through different filters as the asteroid passed near the Sun in May 2022. On the left, the sodium-sensitive orange filter shows the asteroid with a surrounding cloud and small tail, suggesting that sodium atoms from the asteroid’s surface are glowing in response to sunlight. On the right, the dust-sensitive blue filter shows no sign of Phaethon, indicating that the asteroid is not producing any detectable dust.
Credits: ESA/NASA/Qicheng Zhang

A weird asteroid has just gotten a little weirder.

We have known for a while that asteroid 3200 Phaethon acts like a comet...

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Team discovers Near-Universal T cell Immunity towards a Broad Range of Bacteria

Neutralizing the bacterially derived cytotoxic bomb: the pneumococci lie in the background, an array of macrophages and dendritic cells are arranged around the central image of a T cell. Rows of TCRs interacting with the identified pneumolysin epitope bound to HLA (white) cross the length and breadth of the artwork, emphasising their centrality in the immune response. Artwork by Dr. Erica Tandori.
Neutralizing the bacterially derived cytotoxic bomb: the pneumococci lie in the background, an array of macrophages and dendritic cells are arranged around the central image of a T cell. Rows of TCRs interacting with the identified pneumolysin epitope bound to HLA (white) cross the length and breadth of the artwork, emphasising their centrality in the immune response. Artwork by Dr. Erica Tandori.

Typically T cells of the immune system respond to a specific feature (antigen) of a microbe, thereby generating protective immunity. As reported in the journal Immunity, an international team of scientists have discovered an exception to this rule...

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New Materials will Yield Stronger, Faster-Charging Batteries

New materials will yield stronger, faster-charging batteries
Graphical abstract. Credit: Joule (2023). DOI: 10.1016/j.joule.2023.03.011

Researchers at MIT say they have created a new material that will pave the way to faster charging batteries.

Increasing demand for improved electrochemical energy storage devices—that is, batteries—stems from a broad spectrum of technology. That includes electric vehicles, municipal power backup systems that require uninterrupted power during temporary outages, and various other applications in the agricultural, biomedical and defense sectors.

More efficient batteries will contribute to increasing demands for a greener, sustainable future.

But state-of-the-art battery technology suffer from a few drawbacks. One is the length of time required to recharge batteries...

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Study of Small Magellanic Cloud suggests Planets could have Formed during ‘Cosmic Noon’

Study of Small Magellanic Cloud suggests planets could have formed during 'cosmic noon'
NIRCam mosaics of NGC 346. Credit: Nature Astronomy (2023). DOI: 10.1038/s41550-023-01945-7

An international team of space scientists has found evidence suggesting that planets could have formed during the so-called “cosmic noon.” In their study, reported in the journal Nature Astronomy, the group used data from the James Webb Space Telescope (JWST) to study a part of the Small Magellanic Cloud (SMC) to learn more about planet development around young stars.

For many years, astronomers have been studying planet creation and the likelihood of the existence of planets similar to Earth. But it is still not clear how planets could have could come to exist in the early universe when most, if not all of the stars, were small...

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