Method for Decoding Asteroid Interiors could help Aim Asteroid-Deflecting Missions

3-D modeled illustration depicts the DART mission, and shows a boxy spacecraft with blue jets and solar panel wings approaching a bulky meteor.
Caption:MIT astronomers have found a way to determine an asteroid’s interior structure based on how its spin changes during a close encounter with Earth. The tool may improve the aim of future asteroid-targeting missions like the recent DART mission.
Credits:Credit: NASA/Johns Hopkins APL

Astronomers have found a way to determine an asteroid’s interior structure based on how its spin changes during a close encounter with Earth. NASA hit a bullseye in late September with DART, the Double Asteroid Redirection Test, which flew a spacecraft straight at the heart of a nearby asteroid. The one-way kamikaze mission smashed into the stadium-sized space rock and successfully reset the asteroid’s orbit...

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SSRIs and CBT lead to Changes in Brain

SSRIs and CBT lead to changes in brain

Neurochemical changes in the brain differ among patients with social anxiety treated using both SSRIs and CBT, compared to those treated using only CBT. While the combined treatment involving the medicine blocked the serotonin transporters, availability of such transporters increased in patients who only received CBT.

Treatment using selective serotonin reuptake inhibitors, or SSRIs, is effective for depression and anxiety and can be even more effective when combined with cognitive behavioral therapy, or CBT. However, it has not been established which mechanisms in the brain clarify the clinical improvement.

In a double-blind positron emission tomography (PET) study, researchers at Uppsala University investigated people with social anxiety and looked at how serotonin and dopamin...

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Blocking the buzz: MXene Composite could Eliminate Electromagnetic Interference by Absorbing it

A MXene polymer composite being developed in Drexel’s College of Engineering could help to curtail the ever-increasing electromagnetic interference that comes with the proliferation of electronics devices.

Drexel Materials science researchers demonstrate MXene polymer coating can block and absorb interference. A recent discovery by materials science researchers in Drexel University’s College of Engineering might one day prevent electronic devices and components from going haywire when they’re too close to one another. A special coating that they developed, using a type of two-dimensional material called MXene, has shown to be capable of absorbing and disbursing the electromagnetic fields that are the source of the problem.

Buzzing, feedback or static are the noticeable manifestation...

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Methane-Eating ‘Borgs’ have been Assimilating Earth’s Microbes

Conceptual painting depicting celestial purple orbs of varying sizes connected with stretching strands.
A digital illustration inspired by methane-eating archaea and the Borgs that assimilate them (Credit: Jenny Nuss/Berkeley Lab)

A newly discovered type of transferrable DNA structure with a sci-fi name appears to play a role in balancing atmospheric methane. In Star Trek, the Borg are a ruthless, hive-minded collective that assimilate other beings with the intent of taking over the galaxy. Here on nonfictional planet Earth, Borgs are DNA packages that could help humans fight climate change.

Last year, a team led by Jill Banfield discovered DNA structures within a methane-consuming microbe called Methanoperedens that appear to supercharge the organism’s metabolic rate. They named the genetic elements “Borgs” because the DNA within them contains genes assimilated from many organisms...

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