Science

Evidence of dinosaur-killing asteroid impact found on the moon

Asteroid impacts on the moon millions of years ago correspond with large space rock strikes here on Earth — including the massive impact that wiped out the nonavian dinosaurs. The finding reveals that major impacts during Earth’s prehistory were not isolated events. Instead, these asteroid strikes were accompanied by a series of smaller hits both …

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Stunning room-temperature superconductor claim has been retracted

A magnet levitating over a cryogenically cooled superconductor (artist’s concept).Credit: KTSDesign/Science Photo Library A high-profile study in which researchers claimed to have observed the first true room-temperature superconductor has been retracted. Physicist Ranga Dias at the University of Rochester in New York State and his collaborators stirred interest but also caution with a 2020 Nature …

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NASA’s DART asteroid collision shown in newly released photos

Stunning images showing NASA’s DART spacecraft’s intentional collision with an asteroid were released Tuesday. The Italian Space Agency shared the first images snapped by the tiny camera trailing the vending-machine-sized spacecraft, the LICIACube — or Light Italian Cubesat for Imaging of Asteroids. The images were transmitted seven million miles back to earth about three hours …

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Mysterious radio signal from deep space flashes Earth 2,000 times within 2 months – The US Sun

POWERFUL signals are being beamed in Earth’s direction from deep space at an unprecedented rate. According to scientists, a repeating fast radio burst source discovered last year was recorded firing more than 1,800 bursts our way within the space of two months. 1 Fast Radio Bursts are thought to come from powerful objects called magnetarsCredit: …

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Study Shows Transmission of Epigenetic Memory Across Multiple Generations

Summary: By altering the epigenetic markers on chromosomes, researchers witnessed changed gene expression in offspring and grand-offspring. The findings reveal the occurrence of transgenerational epigenetic inheritance. Source: UC Santa Cruz Without altering the genetic code in the DNA, epigenetic modifications can change how genes are expressed, affecting an organism’s health and development. The once radical …

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Shimmering ‘Lakes’ Under The South Pole of Mars Might Be Something Else Entirely : ScienceAlert

What scientists thought were lakes of liquid water hiding under the southern polar ice cap of Mars could turn out to be… just regular old rock. New analysis has found that the brightly shining radar signal interpreted as underground water on the red planet could also have been produced by geological layering. It’s not a …

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Scientists finally find a way to recycle plastic indefinitely

Chemistry chair Wei Zhang (right) and Graduate Research Assistant Zepeng Lei study plastic materials in the Zhang Lab. Credit: Patrick Campbell / University of Colorado Boulder. Remember that plastic bottle you just disposed of in the recycling bin? By the most recent statistics, there is less than a one in three chance it will be …

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‘This one’s for the dinosaurs’: how the world reacted to Nasa’s asteroid smashing success | Space

The crashing of a spacecraft is, for once, a cause for celebration. The Dart (Double Asteroid Redirection Test) mission on Tuesday marked humanity’s first ever attempt at moving an asteroid in space. Scientists at Nasa and Johns Hopkins University applauded and hugged each other on Tuesday after Dart, the size of a vending machine, successfully …

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