Enjoying EarthSky? Subscribe.

159,289 subscribers and counting ...

Earth

Image Credit: Jarno
Science Wire | Jul 01, 2015

What’s the birthstone for July?

The ruby, birthstone for July, is among the most highly prized of gemstones.

Lenticular cloud, by Chris Walker, 2008
Science Wire | Jun 30, 2015

Lenticular clouds look like UFOs

These lens-shaped clouds are often mistaken for UFOs. Here’s how they form, plus gorgeous photos and a video.

coconut-octopus
Science Wire | Jun 26, 2015

Video: Brainy octopus and its coconut

We can’t get enough of the coolness of octopuses here at Earthsky. Watch what this octopus does with coconut shells.

Image by Katerha
Science Wire | Jun 26, 2015

Why isn’t hottest weather at year’s longest day?

Solstice – year’s longest day for northern Earth – was Sunday. But hottest weather is still to come. Likewise, coldest weather is ahead for S. Hemisphere.

sinabung-eruption-6mar14-nasa-300
Science Wire | Jun 25, 2015

Earthquakes to blame for Mount Sinabung eruptions?

Scientists think there may be a link between the new volcanic activity at Mount Sinabung in Indonesia and three recent megathrust earthquakes.

Screen Shot 2015-06-22 at 10.09.29 AM
Science Wire | Jun 22, 2015

Sixth mass extinction is happening now

We are entering a mass extinction that threatens humanity’s existence, says a new study

flare-sunspot-2371-6-19-2015-cp
Science Wire | Jun 22, 2015

Geomagnetic storm on its way, June 22 and 23

It’s due to arrive sometime today (June 22, 2015). NOAA forecasters estimate a 90% chance of polar geomagnetic storms when the CME arrives. Aurora alert!

Red phoenix
Blogs | Jun 21, 2015

A Chinese perspective on summer

In Chinese thought, summer has been associated with the color red, the sound of laughing, the heart organ, the fire element and a red phoenix bird.

Summer solstice sunrise.
Science Wire | Jun 21, 2015

Summer solstice seen from Stonehenge

Why do people gather at Stonehenge in England on the solstice? Info and photos here.

sunset_white_rock_lake_Dallas_Lucy_Bee
Tonight | Jun 20, 2015

Everything you need to know: June solstice 2015

It’s that beautiful time of year again in the N. Hemisphere, when the June solstice – your signal to celebrate summer – is upon us.

Image credit: Kelvinsong/Wikipeida
Science Wire | Jun 18, 2015

Earth’s core contains lots of sulphur

New research shows that Earth’s core contains vast amounts of sulphur – 90% of our planet’s sulphur – equivalent to 10% of the mass of the moon.

BILL_rainfall-cp
Science Wire | Jun 17, 2015

Tropical Depression Bill a flood threat

Bill made landfall late Tuesday morning as a tropical storm. Now weakened, it will produce heavy rain in parts of the south-central U.S. on Wednesday.

Photo via Eric Rolph at Wikimedia Commons
Science Wire | Jun 16, 2015

Can you see a whole circle rainbow?

It’s possible to see the whole circle of a rainbow – but sky conditions have to be just right. Plus you have to be up high!

mount-everest-wikipedia-cp
Science Wire | Jun 16, 2015

Mount Everest shifted 3 centimeters by Nepal earthquake

Located on the China-Nepal border, Mount Everest – highest mountain on Earth – sits where two of Earth’s great land plates meet. Thus it’s always moving …

Image credit: Wikimedia Commons
Science Wire | Jun 15, 2015

Real Jurassic Park needs more than dinos

Yes, cloning long-extinct dinosaurs is impossible. But even if dinosaur genomes were available, the animals couldn’t simply be plopped anywhere.

buoy-NOAA-CREWS-cp
Science Wire | Jun 12, 2015

Global warming hiatus never happened

Studies had suggested that global warming slowed or paused since 1998. More thorough research shows the global warming “hiatus” likely never happened.

jamelah
Science Wire | Jun 12, 2015

Why do fireflies light up?

Next time you see a firefly, keep in mind that its flickering isn’t just a wonder of the night. It’s also a unique, and sometimes deadly, language of love.

cropped-von-karman-vortice-canary-islands
Science Wire | Jun 11, 2015

These are von Kármán vortices

This May 20 satellite image shows several cloud patterns swirling downwind of the Canary Islands. These cool patterns are called Von Kármán vortices.

A reconstruction of the proposed first Proterozoic supercontinent Columbia at 1800 Ma, configured by Zhao et al. (2002).
Science Wire | Jun 11, 2015

North America once linked to Australia?

A new tectonic model suggests that the continent of North America may have once been attached to Australia.

Screen Shot 2015-06-10 at 12.17.15 PM
Science Wire | Jun 10, 2015

Watch start of India’s monsoon season

This year’s monsoon rainfall began on June 5 in southern India. This animation, made from satellite data, shows where the precipitation fell as the season started.

Image credit: Wally Gobetz
Science Wire | Jun 10, 2015

Measuring sea level on a dynamic Earth

Warming temps, and the rise and fall of coasts, complicate measurements of sea level. How do scientists establish sea level on a constantly changing Earth?