NASA has selected 16 cool new futuristic space technology concepts for further study. Four of them are from NASA’s own Jet Propulsion Laboratory (JPL), including a railway system on the moon to move cargo. Source: https://earthsky.org/space/futuristic-space-technology-concepts-nasa-jpl-niac…
Tag: impacts
Upheaval and extinctions linked to magnetic reversal 42,000 years ago
42,000 years ago, a breakdown in Earth’s magnetic field led to environmental catastrophes and mass extinctions. Source: https://earthsky.org/earth/magnetic-field-reversal-42000-years-ago-neanderthal-extinction…
How To Fall 35,000 Feet and Survive
Massachusetts-based amateur historian Jim Hamilton, who developed the Free Fall Research Page — an online database of nearly every imaginable human plummet, documents one case of a sky diver who, upon total parachute failure, was saved by bouncing off high-tension wires. Contrary to popular belief, water is an awful choice. Like concrete, liquid doesn’t compress. Hitting the ocean is essentially the…
Fossil Fuels Caused 8.7 Million Deaths Globally in 2018, Research Finds
Air pollution caused by the burning of fossil fuels such as coal and oil was responsible for 8.7 million deaths globally in 2018, a staggering one in five of all people who died that year, new research has found. From a report: Countries with the most prodigious consumption of fossil fuels to power factories, homes and vehicles are suffering the highest…
MESSENGER saw a meteoroid strike Mercury
Telescopes have captured meteoroids hitting the Moon and several spacecraft imaged Comet Shoemaker–Levy 9 smacking into Jupiter in 1994. But impacts as they happen on another rocky world have never been observed. Source: https://phys.org/news/2021-02-messenger-meteoroid-mercury.html…
New Study: A Zero-Emissions America is Now Pretty Cheap
“Until recently, it was unclear whether variable renewable energy, nuclear, or fossil fuel with carbon capture and storage would become the main form of generation in a decarbonized electricity system,” argues a recently-published analysis titled Carbon-Neutral Pathways for the United States. “The cost decline of variable renewable energy over the last few years, however, has definitively changed the situation.” Ars Technica…
Another terrible year for wildfires and smoke in the US in 2020
Wildfires burned more than 10 million acres in the United States during the 2020 season. It was the worst season on record. Source: https://earthsky.org/earth/us-2020-wildfire-season-record-bad…
Our world is losing ice at a record rate
The rate at which ice is disappearing across the planet has been speeding up, with 65% since the 1990s, a survey of global ice loss using European Space Agency satellite data reveals. Source: https://earthsky.org/earth/esa-satellites-show-record-rate-ice-loss…
Are We Slowing Global Warming?
This week New York Magazine featured a new article by journalist David Wallace-Wells about the state of the fight against global warming. He warns that “Already, the planet is warmer, at just 1.2 degrees, than it has ever been…” But there’s also some good news:
Just a half-decade ago, it was widely believed that a “business as usual” emissions path would bring…
A moon rock decorates Biden’s Oval Office
A lunar sample collected during Apollo 17, the final mission to the moon, is now on display in President Biden’s Oval Office. Source: https://earthsky.org/human-world/moon-rock-in-president-bidens-oval-office…