Did a Comet Wipe out the Dinosaurs?

About 66 million years ago a massive chunk of rock slammed into Earth in what is the modern-day Yucatan Peninsula. The impact extinguished about 75% of all life on Earth. Most famously, it was the event that wiped out the dinosaurs.

While mainstream scientific thought has pointed to an asteroid as the impactor, a new research letter says it could’ve, in fact, been a comet.

Continue reading “Did a Comet Wipe out the Dinosaurs?”

Three Storms Have Dumped Snow on Mauna Loa and Mauna Kea

The words “snow” and “Hawai’i” are not often mentioned in the same paragraph – or even on the same vacation. But snow does fall in Hawai’i almost every year, and 2021 has seen a deep cold front drop snow on the summits of Mauna Loa and Mauna Kea on the Big Island at least three times in the past few weeks – as well as on Haleakala on Maui. This means there are currently in snowcaps on Hawai’i’s three tallest mountains.

Continue reading “Three Storms Have Dumped Snow on Mauna Loa and Mauna Kea”

Is There An Apollo 14 Moon Tree Near You?

50 years ago this week, the Apollo 14 crew flew their mission to the Moon. Alan Shepard and Edgar Mitchell were the third pair of astronauts to walk on the lunar surface. They conducted two moonwalks in the Fra Mauro highlands, collecting rocks and setting up science experiments, as well as broadcasting the first color TV images from the Moon.

Meanwhile, Stuart Roosa remained in orbit as the Command Module pilot. But Roosa wasn’t alone while circling above the Moon.  

Continue reading “Is There An Apollo 14 Moon Tree Near You?”

The Earth’s Magnetosphere Might be Creating Water on the Moon

There’s no doubt that the Moon has water on its surface. Orbiters have spotted deposits of ice persisting in the perpetual shadows of polar craters. And recent research shows that water exists in sunlit parts of the Moon, too.

Over the years, scientists have presented evidence that the Moon’s water came from comets, from asteroids, from inside the Moon, and even from the Sun.

But now new research is pointing the finger directly at Earth as the source of some of the Moon’s water.

Continue reading “The Earth’s Magnetosphere Might be Creating Water on the Moon”

Solar Orbiter Caught Venus, Earth and Mars in One of its Photos

The Solar Orbiter spacecraft is heading towards the center of the Solar System, with the goal of capturing the closest images ever taken of our Sun. But during its flight, the spacecraft turned back to look towards home. It captured Venus, Earth, and Mars together, as seen from about 155.7 million miles (250.6 million kilometers) away.

Continue reading “Solar Orbiter Caught Venus, Earth and Mars in One of its Photos”

Solid Phosphorus has been Found in Comets. This Means They Contain All the Raw Elements for Life

Did comets deliver the elements essential for life on Earth? It’s looking more and more like they could have. At least one comet might have, anyway: 67P/Churyumov–Gerasimenko.

A new study using data from the ESA’s Rosetta mission shows that the comet contains the life-critical element phosphorous.

Continue reading “Solid Phosphorus has been Found in Comets. This Means They Contain All the Raw Elements for Life”

Every Year NASA Simulates Our View of the Moon for the Upcoming 12 Months. Here’s 2021, Hour by Hour

There’s no real reason most of us need to know what the Moon will look like on any particular day at any particular hour next year. No reason other than intellectual curiosity, that is. So if you have a healthy supply of that, then you’ll enjoy NASA’s latest contribution to staring at the internet and wondering where the time went.

Continue reading “Every Year NASA Simulates Our View of the Moon for the Upcoming 12 Months. Here’s 2021, Hour by Hour”