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A tornado, left, and a funnel cloud are seen near Crescent, Oklahoma. Both went on to become tornadoes, according to CNN's weather department.

These states were issued the most dire tornado warning. Now storms are forming

Jeff Bezos, chief executive officer of Amazon.com Inc., watches a video of the new Kindle Fire HD tablet at a news conference in Santa Monica, California, on Sept. 6, 2012. (Patrick Fallon/Bloomberg via Getty Images)

Jeff Bezos Fast Facts

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You've never seen Pluto like this

This image of Pluto was captured from New Horizons was captured on Monday, July 13, about 16 hours before the moment of closest approach. The spacecraft was 476,000 miles from the surface of the dwarf planet.

What keeps Pluto's ocean from freezing?

Score big on the Instant Pot, Roomba and more this Memorial Day

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Myers: If you live in this area, this is a dangerous day

International prototype of the kilogram

Out with the old kilogram, in with the new -- scientists introduce more accurate measure

Why Facebook is teaching a bug-like robot to walk

'GoT' and 'Big Bang Theory' finales highlight shift to fewer shared TV experiences

Before and after comparison of the landing site. Date in lower left indicates when the image was taken. It appears the spacecraft landed from the north on the rim of a small crater, about a few meters wide, leaving a dark "smudge" on Mare Serenitatis that's elongated towards the south.

This is where the Israeli spacecraft crashed into the moon

TEL AVIV, ISRAEL - APRIL 11: An Israeli man react after Beresheet spacecraft fails to land safely on the moon on April 11, 2019 in Tel Aviv, Israel. The Israeli spacecraft - called Beresheet, which is a joint project between SpaceIL, a privately funded Israeli non-profit organisation, and Israel Aerospace Industries failed to land on the lunar surface after the apparent failure of its main engine. (Photo by Amir Levy/Getty Images)

First privately-funded moon mission ends in crash

Minecraft Earth

Minecraft AR game could be the next Pokémon GO phenomenon

Minecraft Earth

Minecraft wants to build on Pokémon Go's success

An expert inspects a dead gray whale as it sits on the beach near Pacifica State Beach on Tuesday in Pacifica, California.

Mysterious surge in dead gray whales concerns scientists

In the abortion debate, when does life begin?

Stojan Stojanovski was near the Ohrid "St. Paul the Apostle" Airport to photograph the blue moon. "The moon was very bright," he said. He waited for planes to take off from the airport to get this long exposure shot. http://ireport.cnn.com/docs/DOC-1261121

Rare 'blue flower moon' will appear in Saturday night's sky

A picture taken on May 17, 2019 in Berlin shows a Stone Cross, a key 15th-century navigation landmark erected by Portuguese explorers, seen at the History Museum in Berlin. - The History Museum museum announced it would restitute the cross to Namibia as part of Berlin's efforts to face up to its colonial past. Placed in 1486 on the western coast of what is today Namibia, the Stone Cross was once considered to be such an important navigation marker that it featured on old world maps. In the 1890s, it was removed from its spot on Cape Cross and brought to Europe by the region's then German colonial masters. (Photo by Tobias SCHWARZ / AFP) (Photo credit should read TOBIAS SCHWARZ/AFP/Getty Images)

Germany to return 500-year-old monument to Namibia

SpaceX will launch its first 60 satellites to deliver internet from space

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What is a blue moon?

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Multiple day severe weather threat possible this weekend

NGC 4485 has been involved in a dramatic gravitational interplay with its larger galactic neighbour NGC 4490 — out of frame to the bottom right in this image. This ruined the original, ordered spiral structure of the galaxy and transformed it into an irregular one. The interaction also created a stream of material about 25 000 light-years long, connecting the two galaxies. The stream, visible to the right of the galaxy is made up of bright knots and huge pockets of gassy regions, as well as enormous regions of star formation in which young, massive, blue stars are born. Below NGC 4485 one can see a bright, orange background galaxy: CXOU J123033.6+414057. This galaxy is the source of X-ray radiation studied by the Chandra X-ray Observatory. It's distance from Earth is about 850 million light-years.

Hubble captures image of a galactic 'hit and run'

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Hubble: The greatest telescope ever

LED lights damage eyes and disturb sleep, European health authority warns

NGC 4485 has been involved in a dramatic gravitational interplay with its larger galactic neighbour NGC 4490 — out of frame to the bottom right in this image. This ruined the original, ordered spiral structure of the galaxy and transformed it into an irregular one. The interaction also created a stream of material about 25 000 light-years long, connecting the two galaxies. The stream, visible to the right of the galaxy is made up of bright knots and huge pockets of gassy regions, as well as enormous regions of star formation in which young, massive, blue stars are born. Below NGC 4485 one can see a bright, orange background galaxy: CXOU J123033.6+414057. This galaxy is the source of X-ray radiation studied by the Chandra X-ray Observatory. It's distance from Earth is about 850 million light-years.

Wonders of the universe

Rest easy with the mattress company that's earning rave reviews

A section of the US-Mexico border fence seen from Tijuana, in Baja California state, Mexico, on March 26, 2019. - A Democrat-led congressional committee challenged Tuesday the Pentagon's plan to divert $1 billion to support President Donald Trump's plan to build a wall on the US-Mexico border.
Less than one day after acting Pentagon chief Patrick Shanahan authorized moving the $1 billion from existing Defense Department projects to border construction, the House Armed Services Committee said this move was not permitted. (Photo by Guillermo Arias / AFP) (Photo credit should read GUILLERMO ARIAS/AFP/Getty Images)

Administration considers next steps in DNA testing on the border

Aurora Australis, New Zealand

Australians could get a rare glimpse of the southern lights

Not sleeping well? These simple tricks can help you get a good night's sleep

Chinese mission uncovers secrets on the far side of the moon

The NASA InSight spacecraft launches onboard a United Launch Alliance Atlas-V rocket on May 5, 2018, from Vandenberg Air Force Base in California. - NASA on May 5 launched its latest Mars lander, called InSight, designed to perch on the surface and listen for "Marsquakes" ahead of eventual human missions to explore the Red Planet. (Photo by Robyn Beck / AFP) / (Photo credit should read ROBYN BECK/AFP/Getty Images)

Astronaut: How America can lead the way to Mars

The cast of 'The Big Bang Theory' filmed their last episode on April 30.

Chuck Lorre says it's 'foolish' to think there won't be another 'Big Bang'

CAROLINA, PUERTO RICO - OCTOBER 03: President Donald Trump waves as he arrives at the Muniz Air National Guard Base for a visit after Hurricane Maria hit the island on October 3, 2017 in Carolina, Puerto Rico.

This may be the worst thing to come from Trump's presidency

India Jackson, left, with her daughter, Jewel Henry. Jackson was selected for a NASA internship, but wasn't sure she could afford to go.

A single mom needed to pay for a NASA internship. Hundreds of strangers chipped in to help her

Ancient finds

A photo of the mass grave site.

A 5,000-year-old mass gravesite reveals a family tragedy

Amazon CEO Jeff Bezos announces Blue Moon, a lunar landing vehicle for the Moon, during a Blue Origin event in Washington, DC, May 9, 2019. (Photo by SAUL LOEB / AFP) (Photo credit should read SAUL LOEB/AFP/Getty Images)

Jeff Bezos unveils his big plans for the moon

Late Onset Alzheimer's Disease Senile Dementia. Symmetric Enlargement Of Cerebral Sulci Suggests That Cortical Gray Matter Is Affected. Axial Cut Away View. (Photo By BSIP/UIG Via Getty Images)

Eat well, exercise more: New global guidelines to reduce risk of dementia

Kyrgyzstan albert dros night

Super-pro Albert Dros reveals how to photograph the Milky Way

A picture of a human brain taken by a positron emission tomography scanner, also called PET scan, is seen on a screen on January 9, 2019, at the Regional and University Hospital Center of Brest (CRHU - Centre Hospitalier Régional et Universitaire de Brest), western France. - The CHRU of Brest has just acquired a new molecular imaging device, the most advanced in France today according to the hospital center, capable of better detecting deep lesions and especially cancerous pathologies, the hospital announced on January 9, 2019. (Photo by Fred TANNEAU / AFP) (Photo credit should read FRED TANNEAU/AFP/Getty Images)

These common health problems could be early signs of Parkinson's

How humans caused the moon to warm

NASA plans to land the first woman on the moon by 2024

This is a view of the Taurus-Littrow valley taken by NASA's Lunar Reconnaissance Orbiter spacecraft. The valley was explored in 1972 by the Apollo 17 mission astronauts Eugene Cernan and Harrison Schmitt. They had to zig-zag their lunar rover up and over the cliff face of the Lee-Lincoln fault scarp that cuts across this valley. Credits: NASA/GSFC/Arizona State University

Earth's moon is shrinking and quaking, study says

Officers stand watch at the scene of a shooting in which at least seven students were injured at the STEM School Highlands Ranch on May 7, 2019.

Colorado officials unanimously vote to commit $10M for school safety and mental health after school shooting

A self-portrait taken by NASA's Curiosity rover taken on Sol 2082 (June 15, 2018). A Martian dust storm has reduced sunlight and visibility at the rover's location in Gale Crater. Image Credit: NASA/JPL-Caltech

Navarro González: Con Curiosity podemos hacer análisis del pasado y futuro de Marte