Nell Greenfieldboyce

Nell Greenfieldboyce appears in the following:

When A City-Size Star Becomes A Black Hole's Lunch, The Universe Roils

Tuesday, June 29, 2021

It's a smackdown of one space monster by another: Scientists have made unprecedented observations of two black holes gobbling two neutron stars — among the weirdest space collisions ever detected.


Alien Planet-Hunters In Hundreds Of Nearby Star Systems Could Spot Earth

Wednesday, June 23, 2021

Potentially, observers in plenty of star systems could have detected Earth sometime in the last 5,000 years. More stars will soon move into positions that would let them see our planet.


NASA Picks Twin Missions To Visit Venus, Earth's 'Evil Twin'

Wednesday, June 02, 2021

The two space probes will study Venus, a scorching hot world that may have once been like Earth. NASA chose the Venus missions over other candidates, such as trips to the moons of Jupiter and Neptune.


Why Jumping Spiders Spend All Night Hanging Out — Literally

Tuesday, June 01, 2021

Little is known about the night-time habits of tiny creatures all around us. Take the jumping spider--it mysteriously can spend much of the night suspended in mid-air, hanging by a thread.


Brood X Cicadas Are Busy And So Are The Scientists Who Study Them

Tuesday, May 25, 2021

When a critter spends 17 years underground, it's not easy to study. So as Brood X cicadas break out, they're followed closely by researchers who must cram a lot of work in about six weeks.


Freshly Made Plutonium From Outer Space Found On Ocean Floor

Thursday, May 13, 2021

Something went boom in outer space and sent radioactive stardust our way, and it's just been found at the bottom of the ocean.


Cats Take 'If I Fits I Sits' Seriously, Even If The Space Is Just An Illusion

Monday, May 10, 2021

If you've spent any time around cats, you've seen them curl up in cozy spaces. A new study on feline cognition shows that they also like to sit in snug squares created by a kind of optical illusion.


25 Down And 71,632 To Go: Scientists Seek Genomes Of All Critters With A Backbone

Wednesday, April 28, 2021

Biologists say newly efficient and accurate gene sequencing techniques have allowed them to fairly quickly detail full genomes and find overlooked genes in a broad range of 25 important species.


The Secret Mission To Unearth Part Of A 142-Year-Old Experiment

Wednesday, April 21, 2021

Scientists in Michigan went out in the dead of night to dig up part of an unusual long-term experiment. It's a research study that started in 1879 and is handed from one generation to the next.


Scientific Specimens Are Going Online, But Much Remains Hidden In Storage

Saturday, March 27, 2021

From fish in jars to rare seeds and microbes, hundreds of millions of biological specimens are stored around the U.S., and caretakers are trying to make them accessible for future research.


Sleeping Octopuses May Have Dreams, But They're Probably Brief

Thursday, March 25, 2021

Octopuses have an "active" phase of sleep, the kind that might involve dreaming, but they probably don't have long, complicated dreams like people do.


NASA To Test Rocket In The Next Step Toward Returning To The Moon

Wednesday, March 17, 2021

NASA is counting down to what should be the final major test of the massive rocket it is building to put the first woman and the next man on the moon.


How A Building Block Of Life Got Created In A Flash

Tuesday, March 16, 2021

Lightning strikes may have supplied a key ingredient that allowed life to emerge on early Earth, according to a new study of "fossilized" lightning.


Reading A Letter That's Been Sealed For More Than 300 Years — Without Opening It

Tuesday, March 02, 2021

A signed, sealed but not delivered letter from 1697 has finally been read with the help of a high-tech scan that looked inside without breaking its seal.


CDC Panel Endorses Johnson & Johnson's One-Dose COVID-19 Vaccine

Sunday, February 28, 2021

Advisers to the Centers for Disease Control and Prevention voted to endorse the emergency use of a single dose of a vaccine made by Johnson & Johnson. A study showed it was 66% effective in the U.S.


Ancient Trees Show When The Earth's Magnetic Field Last Flipped Out

Thursday, February 18, 2021

A precise record of the last major reversal of the Earth's magnetic poles can be found in ancient trees. Researchers say this event 42,000 years ago had a huge impact on the planet and ancient humans.


As Scientists Study Tattoo Ink Safety, Europe Bans Two Widely Used Pigments

Saturday, February 13, 2021

Tattoo artists are unhappy about a new ban on blue and green pigments in Europe, while scientists say the basic science of tattoo ink is still fairly mysterious.


Why A Musician Breathed New Life Into A 17,000-Year-Old Conch Shell Horn

Wednesday, February 10, 2021

A seashell found in a French cave appears to have been modified by prehistoric people so that it could be used like a trumpet, making it a new addition to the Stone Age orchestra.


Friend or Foe? Naked Mole Rats Can Tell By A Unique Squeak

Thursday, January 28, 2021

A new study shows that naked mole rats speak with distinct dialects that appear to be learned — and reveal what group they belong to.


Pandemic Advances Scientific Understanding Of Viruses' Air Transmission

Monday, December 28, 2020

Due to the coronavirus pandemic, scientists this year made significant progress in understanding how respiratory viruses can be transmitted from one person to another through the air.