Search results for meteor

Astronomy Mar 21, 2024

Heat to blame for space pebble demise

The dust of comets fills the space between the planets, collectively called the zodiacal cloud. Still, severe breakdown has reduced that dust in size so much that it now scatters sunlight efficiently, causing the faint glow ...

Planetary Sciences Mar 14, 2024

A 790,000 year-old asteroid impact could explain seafloor spherules

Our solar system does not exist in isolation. It formed within a stellar nursery along with hundreds of sibling stars, and even today has the occasional interaction with interstellar objects such as 'Oumuamua and Borisov. ...

Planetary Sciences Mar 14, 2024

Total solar eclipses provide an opportunity to engage with science, culture and history

On April 8, 2024, there will be a total solar eclipse in Canada. This is an opportunity to experience, learn from and participate in the excitement and wonder. And rather than hiding inside, researchers have been communicating ...

Other Mar 9, 2024

Saturday Citations: New hope for rumbly guts; 'alien' signal turns out to be terrestrial and boring. Plus: A cool video

I've seen things you people wouldn't believe. Rodents eating herbal remedies. I watched a truck mistaken for an alien message. All those moments will be lost in time, like the Upper West Side under land subsidence.

Astronomy Mar 7, 2024

Interstellar signal linked to aliens was actually just a truck

Sound waves thought to be from a 2014 meteor fireball north of Papua New Guinea were almost certainly vibrations from a truck rumbling along a nearby road, new Johns Hopkins University-led research shows. The findings raise ...

Space Exploration Mar 7, 2024

Spacesuits need a major upgrade for the next phase of exploration

Humans have long dreamed of setting foot on the moon and other planetary bodies such as Mars. Since the 1960s, space travelers have donned suits designed to protect them from the vacuum of space and stepped out into the unknown.

Plants & Animals Mar 5, 2024

Fossil named 'Attenborough's strange bird' was the first of its kind without teeth

No birds alive today have teeth. But that wasn't always the case; many early fossil birds had beaks full of sharp, tiny teeth. In a paper in the journal Cretaceous Research, scientists have described a new species of fossil ...

Space Exploration Mar 4, 2024

New study addresses how lunar missions will kick up moondust

Before the end of this decade, NASA plans to return astronauts to the moon for the first time since the Apollo Era. But this time, through the Artemis Program, it won't be a "footprints and flags" affair.

Space Exploration Mar 1, 2024

Night-shining cloud mission ends; yields high science results for NASA

After 16 years studying Earth's highest clouds for the benefit of humanity—polar mesospheric clouds—from its orbit some 350 miles above the ground, NASA's Aeronomy of Ice in the Mesosphere, or AIM, mission has come to ...

Planetary Sciences Feb 29, 2024

Ice shell thickness reveals water temperature on ocean worlds

Decades before any probe dips a toe—and thermometer—into the waters of distant ocean worlds, Cornell astrobiologists have devised a novel way to determine ocean temperatures based on the thickness of their ice shells, ...

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