How to keep Earth from being cooked by the ever-hotter Sun
Here are two options for future humans to keep us in the habitable zone. I’d wager a guess that we are, as a species, rather fond of our home planet (our wanton carbon emissions notwithstanding). But the ugly truth is that the Eart.....»»
Geologists rewrite textbooks with new insights from Cambrian rocks of Grand Canyon
Since soon after our planet formed, Earth's 4.6 billion-year-long history was dominated by single-celled life. Something dramatic happened about 500 million years ago called the Cambrian "explosion," during which an incredible diversity of life forms.....»»
Planetary Boundaries framework gains traction in sustainability science
The Planetary Boundaries (PB) framework is a pivotal tool for tackling the climate crisis and safeguarding humanity's future on Earth. For the first time, the full story of the Planetary Boundaries is now being told from its beginning......»»
Cracked earth in Greece"s saffron heartland as drought takes toll
At a field outside Kozani, northern Greece, the strikingly blue-and-purple petals of saffron give off an intoxicating scent that underscores the value of one of the country's most lucrative crops......»»
Astronaut’s photo shows Earth as you’ve never seen it before
NASA's oldest serving astronaut has shared an image taken from the space station that shows Earth in a most unusual way......»»
Advances in plate tectonics research provide a new view of deep Earth"s carbon emissions
From time to time, when Earth's tectonic plates shift, the planet emits a long, slow belch of carbon dioxide. In a new modeling study published in Geochemistry, Geophysics, Geosystems, R. Dietmar Müller and colleagues show how this gas released from.....»»
Nearly three years since launch, Webb is a hit among astronomers
Demand for observing time on Webb outpaces supply by a factor of nine. From its halo-like orbit nearly a million miles from Earth, the James Webb Space Telescope is seeing farther.....»»
SpaceX reveals date for next flight of Starship megarocket
The Elon Musk-led spaceflight company will attempt to catch the Super Heavy booster for a second time as it returns to Earth......»»
Experiment reveals how Earth"s magnetic field influences flow in planet"s core
A trio of physicists, two with Coventry University, in the U.K., and the third with Laboratoire National des Champs Magnétiques Intenses, in France, has demonstrated how Earth's magnetic field may be influencing internal flow, using what they descri.....»»
Ancient unicellular organism indicates embryonic development might have existed prior to animals" evolution
Chromosphaera perkinsii is a single-celled species discovered in 2017 in marine sediments around Hawaii. The first signs of its presence on Earth have been dated at over a billion years, well before the appearance of the first animals......»»
Making farming better for bees: Can we breed crops that produce more nectar and pollen?
Where once there were vast areas of forest and other natural habitats, farmland now covers much of Earth—including 70% of the UK. This transition has helped feed a growing number of people......»»
Microbial slime: The ultimate system to understand our planet
Billions of years ago, Earth was home to extreme environments, including intense UV radiation, frequent volcanic eruptions, and very high concentrations of carbon dioxide in the atmosphere. Yet, under these conditions, biofilms formed and within thes.....»»
Earth 2 at 30: A look back at NBC’s big swing at sci-fi in the early ’90s
A long-forgotten sci-fi series premiered on NBC 30 years ago this month, but it paved the way for some of the shows that came after it......»»
"The nastiest soils on Earth" are getting recognized as a bigger problem
Acid sulfate soils are characterized by their orange hue and their tendency to kill surrounding vegetation and fish. Anders Johnson's extensive research along Sweden's coastline reveals the widespread presence of these soils, underscoring their signi.....»»
Testing thousands of RNA enzymes helps find first "twister ribozyme" in mammals
The "RNA world" hypothesis proposes that the earliest life on Earth may have been based on RNA—a single-stranded molecule similar in many ways to DNA—like some modern viruses. This is because, like DNA, RNA can carry genetic information, but, lik.....»»
Earth underwent a massive, rapid melting period after the last global ice age, new study suggests
At the end of the last global ice age, the deep-frozen Earth reached a built-in limit of climate change and thawed into a slushy planet. Results from a Virginia Tech-led study provide the first direct geochemical evidence of the slushy planet—other.....»»
Next-generation space materials blast off for tests on ISS
A new generation of space materials left Earth on November 5 as they head to the International Space Station (ISS) to undergo testing in the brutal conditions of low Earth orbit......»»
Moon waves goodbye to Hera
As ESA's Hera mission for planetary defense departed its homeworld, it looked back to Earth to show the moon orbiting around it. In this sequence of images the terrestrial disk gradually shrinks as the spacecraft recedes away from it, and the moon mo.....»»
Final Venus flyby for NASA"s Parker Solar Probe queues closest sun pass
On Wednesday, Nov. 6, 2024, NASA's Parker Solar Probe will complete its final Venus gravity assist maneuver, passing within 233 miles (376 km) of Venus's surface. The flyby will adjust Parker's trajectory into its final orbital configuration, bringin.....»»
Portal to the past: Geologist identifies metamorphic rock as a crucial feature of the ancient Earth"s carbon cycle
If Earth's history were a calendar year, humans would not appear until the last few minutes before midnight on Dec. 31. During the Proterozoic Eon—2.5 billion years to 543 million years ago—the sun was still a young star, much dimmer than today,.....»»
Apophis: A new European space mission could get up close with a large asteroid that"s set to brush by Earth
The European Space Agency has given the go-ahead for initial work on a mission to visit an asteroid called (99942) Apophis. If approved at a key meeting next year, the robotic spacecraft, known as the Rapid Apophis Mission for Space Safety (Ramses),.....»»