Search results for Matt Williams, Universe Today

Planetary Sciences Dec 21, 2021

Floating 'aerobats' could be the best way to explore the cloud tops of Venus

According to multiple lines of evidence, Venus was once a much different planet than it is today. But roughly 500 million years ago, a massive resurfacing event triggered a runaway greenhouse effect that led to the poisonous ...

Astronomy Dec 10, 2021

Hubble is fully operational once again

In the history of space exploration, a handful of missions have set new records for ruggedness and longevity. On Mars, the undisputed champion is the Opportunity rover, which was slated to run for 90 days but remained in ...

Space Exploration Dec 8, 2021

Rocket Lab shows off its new reusable Neutron rocket, due for launch in 2024

On December 2, 2021, the commercial space company Rocket Lab unveiled the detailed architecture of their Neutron rocket for the first time. In a live-streamed event, the company showcased all the new elements that will make ...

Astronomy Nov 23, 2021

If alien probes are already in the solar system, maybe we could detect them calling home

It's been 70 years since physicist Enrico Fermi asked his famous question: "Where is everybody?" And yet, the tyranny of the Fermi Paradox is still with us and will continue to be until definitive evidence of extraterrestrial ...

Astronomy Nov 18, 2021

No transits of Proxima Centauri planets in high-cadence TESS data

Our closest stellar neighbor is Proxima Centauri, an M-type (red dwarf) star located over 4.24 light-years away (part of the Alpha Centauri trinary system). In 2016, the astronomical community was astounded to learn that ...

Astronomy Nov 15, 2021

Not saying it was aliens, but 'Oumuamua probably wasn't a nitrogen iceberg

On October 19, 2017, astronomers made the first-ever detection of an interstellar object (ISO) passing through our solar system. Designated 1I/2017 U1 ′Oumuamua, this object confounded astronomers who could not determine ...

Astrobiology Nov 3, 2021

Is the universe fine-tuned for life?

For decades, various physicists have theorized that even the slightest changes in the fundamental laws of nature would make it impossible for life to exist. This idea, also known as the "fine-tuned universe" argument, suggests ...

Planetary Sciences Oct 18, 2021

Rocky planets might need to be the right age to support life

Extrasolar planets are being discovered at a rapid rate—4,531 planets in 3,363 systems (with another 7,798 candidates awaiting confirmation). Of these, 166 have been identified as rocky planets (also known as "Earth-like"), ...

Astronomy Oct 15, 2021

China's FAST telescope could detect self-replicating alien probes

One of the most challenging questions to answer when confronting the Fermi paradox is why exponentially scaling technologies haven't taken over the universe by now. Commonly known as von Neumann probes, the idea of a self-replicating ...

Astronomy Oct 5, 2021

A technique to find oceans on other worlds

You could say that the study of extrasolar planets is in a phase of transition of late. To date, 4,525 exoplanets have been confirmed in 3,357 systems, with another 7,761 candidates awaiting confirmation. As a result, exoplanet ...

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