Planet Earth, features and articles | Educational Science

Apr 30, 2022

Don't miss the first 'Manhattanhenge' of 2022 this Memorial Day weekend

New York City's special solstice is just around the corner. Big Apple residents and visitors can catch the gorgeous Manhattanhenge this Memorial Day weekend as the sun sets between buildings on Sunday (May 29) and Monday (May 30), particularly if you're around 14th, 23rd, 34th, 42nd and 57th Streets. The...

Feb 28, 2022

What is the coldest city in the world?

In a letter Antarctic explorer Ernest Shackleton wrote to his friend Kitty Pogson, a London socialite, during his expedition in September 1902, he describes the extreme cold and its catastrophic effects on the crew. We unfortunately lost one of our men in a very bad blizzard by his falling over...

Jan 31, 2022

What's the oldest mountain range in the world? (How about the youngest?)

Mountains may look ancient — but some are mere toddlers, while others are great-grandaddies, geologically speaking. So, what is the oldest mountain range? And what about the youngest? In general, tall mountain ranges, such as the Himalayas, tend to be young, whereas ranges with shorter peaks from millennia of erosion,...

Dec 31, 2021

What is a scientific hypothesis?

A scientific hypothesis is a tentative, testable explanation for a phenomenon in the natural world. It's the initial building block in the scientific method. Many describe it as an educated guess based on prior knowledge and observation. While this is true, a hypothesis is more informed than a guess. While...

Sep 30, 2023

Science news this week: Lava lakes and moon chunks

This week in science news, we followed an expedition to the bottom of the world in search of a lava lake, tracked a mysterious chunk of the moon orbiting Earth and discovered something horrifying hiding in someone's ear canal. Although we know much about the surface of our planet, there...

Mar 31, 2023

Ancient ocean floor surrounds Earth's core, seismic imaging reveals

A massive ocean floor lurks near Earth's core. Now, seismic imaging has revealed that it likely surrounds much — if not all — of the core. This thin, dense layer is lodged roughly 2,000 miles (3,200 kilometers) below Earth's surface, between the core and the planet's middle layer, called the...

Mar 31, 2023

Fusion power key to Earth's survival, says Bill Nye in exclusive interview

Editor's note: The following contains spoilers for The End is Nye series on Peacock TV. What would Bill Nye the Science Guy get our home planet for Earth Day? The ultimate gift: fusion energy. We need electricity, Nye told Live Science in an exclusive interview on Thursday (April 20). We...

Jan 6, 2024

Why does the moon sometimes have a 'halo'?

If you've ever looked up at the full moon in the night sky, you may have noticed a large halo of light around it. But why does this lustrous ring sometimes encircle our natural satellite? While it might seem like a sign you need a new glasses prescription, it's really...

Jan 10, 2024

'Superstructure' bigger than Idaho has been growing on the seafloor by Fiji since the dinosaur age

An undersea plateau in the Pacific Ocean that is bigger than Idaho first started forming with volcanic eruptions during the Cretaceous period (145 to 66 million years ago), and it is still growing today. In fact, the Melanesian Border Plateau, located east of the Solomon Islands, formed through four separate...

Jan 14, 2024

5 stories making science news this week: A Pacific 'superstructure' and an ancient Roman bullet

This week's science news has revealed an enormous superstructure bigger than Idaho growing on the seafloor, an ancient bullet inscribed with the name of Julius Caesar, and an extinct hypercarnivorous grizzly bear that was actually mostly vegetarian. 'Superstructure' growing on the Pacific seafloor since the dinosaur age An undersea plateau...

Jan 16, 2024

Lost 'Atlantis' continent off Australia may have been home for half a million humans 70,000 years ago

About 70,000 years ago, a vast swathe of land that's now submerged off the coast of Australia could once have supported a population of half a million people. The undersea territory was so large it could have functioned as a stepping stone for migration from modern-day Indonesia to Australia, finds...

Jan 16, 2024

More than duodecillion cells have existed on Earth in its history, scientists estimate

All organisms are made of living cells. While it is difficult to pinpoint exactly when the first cells came to exist, geologists' best estimates suggest at least as early as 3.8 billion years ago. But how much life has inhabited this planet since the first cell on Earth? And how...

Jan 22, 2024

Will the Doomsday Clock stand still or creep closer to midnight? Here's how to watch the reveal on Tuesday.

UPDATE: On Jan. 2 it was announced that the Doomsday Clock would remain at just 90 seconds to midnight, with the Bulletin of the Atomic Scientists citing the threat of nuclear escalation in Ukraine, climate change and disruptive technologies as reasons to keep the clock teetering on the doorstep of...

Jan 23, 2024

Doomsday Clock hovers at 90 seconds to midnight for 2nd year in a row

The Doomsday Clock, whose hypothetical hands strike the minutes and seconds left until a human-made apocalypse destroys the world as we know it, has remained at just 90 seconds to midnight. The clock moved to 90 seconds to midnight for the first time ever last year, after hovering at 100...

Jan 26, 2024

City-sized holes on Antarctica's ice shelves offer tantalizing 'window' into the frozen continent's underworld

Enormous, city-size holes that open up on Antarctica's ice shelf may be linked to the formation of giant icebergs that calve off of the frozen continent, a new study has found. These windows into the sub-shelf environment could offer clues about how the ice is melting deep beneath the surface,...