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Beyond “Fermi’s Paradox” XII: What is the Waterworlds Hypothesis?

Is it possible that the reason we haven't heard from any aliens is because there's too much water out there?

21 hours ago

The Moon has Resources, but Not Enough to Go Around

A new study led by the Harvard-Smithsonian Center for Astrophysics explains how the Moon may not have enough resources to…

5 days ago

RocketLab Recovers a First-Stage Booster for the First Time: “Return to Sender”

In recent years, one of the most impressive developments for space exploration has been the rise of the commercial space…

6 days ago

At One Time, This Region of Mars was Inundated by a “Megaflood”

A new study of the Curiosity rover's data has show that the Gale Crater once experienced massive flooding, bolstering the…

7 days ago

Arecibo’s Damage is so Serious and Dangerous, They’re Just Going to Scrap the Observatory Entirely

In the wake of a second structural failure, the NSF has announced that the iconic Arecibo Observatory will be decommissioned…

1 week ago

Scientists Have Re-Analyzed Their Data and Still See a Signal of Phosphine at Venus. Just Less of it

The team that detected phosphine in Venus' atmosphere has reexamined the data and confirmed their discovery, with a few caveats…

2 weeks ago

A 100-Meter Rotating Liquid Mirror Telescope on the Moon? Yes Please.

A team from UT Austin has renewed a proposal for a liquid-mirror telescope on the Moon that could study the…

2 weeks ago

Earth and the Moon Might Have Captured an Old Upper Stage Rocket

According to NASA, an object detected between the Earth and Moon could actually be the spent stage of a rocket…

2 weeks ago

Past Supernovae Could be Written Into Tree Rings

A new study by CU Boulder geoscientist Robert Brakenridge shows how nearby supernovae could have disrupted Earth's climate in the…

2 weeks ago

A Record Close Shave: Asteroid 2020 VT4 Just Skimmed by Earth

Wow. A low-flying space rock set a record last Friday (appropriately, the 13th), when 2020 VT4 passed just under 400…

2 weeks ago