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Space Exploration Nov 29, 2021

ESA's riskiest flyby

The chance that ESA's Solar Orbiter spacecraft will encounter space debris during its upcoming Earth flyby is very, very low. However, the risk is not zero and is greater than any other flyby ESA has performed. That there ...

Astronomy Nov 29, 2021

Comet A1 Leonard brightens in December

Now is the time to start tracking Comet C/2021 A1 Leonard, as it starts its dawn dive sunward.

Astronomy Nov 10, 2021

New model will help find Earth-like exoplanets

A new category of planet, known as eggshell planets, which orbit distant stars, have ultra-thin crusts too thin to sustain tectonics and will be hostile to life, according to a new international study involving the University ...

Space Exploration Nov 10, 2021

Meet VMS: The briefcase-sized chemistry lab headed to Venus

Short for Venus Mass Spectrometer, VMS is one of five instruments aboard the DAVINCI descent probe. Launching in 2029, DAVINCI will be the first US probe mission to enter Venus' atmosphere in over 40 years. The goal of the ...

Plasma Physics Nov 8, 2021

Feeling the heat: Fusion reactors used to test spacecraft heat shields

Spacecraft have long used heat shields for protection during entry into planetary atmospheres. Future missions to the outer solar system will need more sophisticated materials than currently exist. The extreme heating conditions ...

Plants & Animals Nov 5, 2021

Deep-sea sponge a mechanical marvel of nature

The Venus's flower basket sponge could inspire the buildings, bridges and even aircraft of tomorrow, thanks to its performance under pressure and ability to go with the flow—literally.

Planetary Sciences Oct 21, 2021

Ten mysteries of Venus

The surface of Venus is completely inhospitable for life: barren, dry, crushed under an atmosphere about 90 times the pressure of Earth's and roasted by temperatures two times hotter than an oven. But was it always that way? ...

Planetary Sciences Oct 13, 2021

Did Venus ever have oceans?

The planet Venus can be seen as the Earth's evil twin. At first sight, it is of comparable mass and size as our home planet, similarly consists mostly of rocky material, holds some water and has an atmosphere. Yet, a closer ...

Space Exploration Oct 8, 2021

Newly returned moon rock samples chronicle the dying days of lunar volcanism

Billions of years ago, lakes of lava on the surface of the moon eventually dried to form the vast dark patches—the lunar maria—visible today on the lunar nearside. Now, thanks to rock samples recently returned to Earth by ...

Space Exploration Oct 5, 2021

Working overtime: NASA's deep space atomic clock completes mission

For more than two years, NASA's Deep Space Atomic Clock has been pushing the timekeeping frontiers in space. On Sept. 18, 2021, its mission came to a successful end.

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