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Astronomy Oct 26, 2023

Venus had Earth-like plate tectonics billions of years ago, study suggests

Venus, a scorching wasteland of a planet according to scientists, may have once had tectonic plate movements similar to those believed to have occurred on early Earth, a new study found. The finding sets up tantalizing scenarios ...

Earth Sciences Oct 17, 2023

We landed a camera on Venus before seeing parts of our own oceans—time to ramp up observations closer to home

Viewed from the Voyager 1 space probe as it passed beyond the edge of the solar system, Earth and Venus might not look too different—same diameter, similar mass and distance from the sun.

Space Exploration Oct 8, 2023

Study quantifies satellite brightness, challenges ground-based astronomy

The ability to have access to the Internet or use a mobile phone anywhere in the world is taken more and more for granted, but the brightness of Internet and telecommunications satellites that enable global communications ...

Planetary Sciences Oct 6, 2023

Can JWST tell the difference between an exoEarth and an exoVenus?

As of October 2023, astronomers have discovered 5,506 exoplanets orbiting other stars. That number is growing daily, and astronomers are hoping, among other things, to find Earth-like worlds. But will we know one when we ...

Astronomy Oct 6, 2023

Parker makes its closest and fastest solar flyby

The Parker Solar Probe is the little engine that just keeps going and going by the sun. On September 27th, it made its 17th close approach and skimmed just 7.26 million kilometers (4.51 million miles) above the sun's "surface" ...

Planetary Sciences Oct 2, 2023

Does lightning strike on Venus? Maybe not, study suggests

Venus may be a (slightly) gentler place than some scientists give it credit for.

Earth Sciences Sep 22, 2023

Earth's crust, tectonic plates gradually formed, geoscientists find

The Earth's crust continued a slow process of reworking for billions of years, rather than rapidly slowing its growth some 3 billion years ago, according to a Penn State-led research team. The new finding contradicts existing ...

Space Exploration Sep 20, 2023

Juice: Why's it taking so long?

At their closest point in orbit, Earth and Jupiter are separated by almost 600 million kilometers. At the time of writing, five months after launch, Juice has already traveled 370 million kilometers, yet in time it's only ...

Planetary Sciences Sep 19, 2023

Venus on Earth: NASA's VERITAS science team studies volcanic Iceland

With its crushing atmospheric pressure, clouds of sulfuric acid, and searing surface temperature, Venus is an especially challenging place to study. But scientists know that observing its surface can provide key insights ...

Astronomy Sep 12, 2023

Flashes of light in Venusian atmosphere may be meteors, not lightning

A team of planetary scientists at Arizona State University has found evidence that the multitude of bright flashes in Venus' atmosphere may be due to meteors passing through, not lightning strikes. In their paper published ...

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