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Just over 24 hours before its closest approach to Ultima Thule, New Horizons has sent back the first images that begin to reveal Ultima Thule’s shape. Image-sharpening techniques combining multiple images show that Ultima Thule is elongated, perhaps twice as long as it is wide. The spacecraft was approximately 1.2 million miles (1.9 million km) from Ultima Thule when this image was taken on December 30, 2018. Image credit: NASA / Johns Hopkins University Applied Physics Laboratory / Southwest Research Institute.

New Horizons Arrives at Ultima Thule

Jan 1, 2019 by News Staff

After a journey of 13 years and 4 billion miles (6.4 billion km), NASA’s New Horizons probe had a close encounter with a Kuiper Belt object known as...

Artist’s impression of New Horizons encountering a Pluto-like object in the distant Kuiper Belt. Image credit: NASA / JHUAPL / SwRI / Alex Parker.

New Horizons to Reach Ultima Thule on New Year’s Day: Watch Live

Dec 31, 2018 by News Staff

On January 1st, 2019, at 12:33 a.m. EST (5:33 a.m. GMT), NASA’s New Horizons spacecraft will fly past a Kuiper Belt object known as 2014 MU69 (nicknamed...

Klobiodon rochei. Image credit: Mark Witton.

New Jurassic-Era Pterosaur Discovered in England

Dec 28, 2018 by News Staff

Paleontologists from the University of Portsmouth have discovered the fossilized remains of a new species of ancient flying reptile. Klobiodon rochei....

Andesite blocks at Pumpapunku. Image credit: Brattarb / CC BY-SA 3.0.

Pumapunku: Researchers Reconstruct Enigmatic Pre-Columbian Monument

Dec 27, 2018 by News Staff

The Pumapunku (Gateway of the Puma or Jaguar), a highly damaged pre-Columbian monument at the ancient archaeological site of Tiwanaku, Bolivia, has been...

Physarum polycephalum on an oak log. Image credit: Mushroom Observer / CC BY-SA 3.0.

Slime Mold Can Solve Exponentially Complicated Problems in Linear Time

Dec 26, 2018 by Sam Sander Effron

Researchers from Lanzhou University in China have shown that the slime mold Physarum polycephalum is able to solve the Traveling Salesman Problem, a combinatorial...

An artist’s impression of New Horizons encountering Ultima Thule. Image credit: NASA / Johns Hopkins Applied Physics Laboratory / Southwest Research Institute / Alex Parker.

New Horizons Team Puzzled by Lack of Light Curve from Ultima Thule

Dec 25, 2018 by News Staff

Over the past three months, NASA’s New Horizons spacecraft has been taking images to measure the brightness of its next flyby target — a Kuiper...

The 51st known Mersenne prime has 24,862,048 digits. Image credit: Pete Linforth.

Largest Known Prime Number Has Almost 25 Million Digits

Dec 24, 2018 by News Staff

Professional and amateur mathematicians from a worldwide research project called the Great Internet Mersenne Prime Search (GIMPS) have discovered the largest...

ALMA image of 46P/Wirtanen taken on December 2, 2018, as the comet approached Earth. The image shows the concentration and distribution of HCN molecules near the center of the comet’s coma. Image credit: ALMA / ESO / NAOJ / NRAO / M. Cordiner / NASA / CUA.

ALMA Takes Close Look at Comet 46P/Wirtanen

Dec 24, 2018 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) captured the radio image of 46P/Wirtanen on December 2, 2018, when the comet...

Perspective view of Korolev crater. Image credit: ESA / DLR / FU Berlin / CC BY-SA 3.0 IGO.

ESA’s Mars Express Orbiter Spots Water Ice-Filled Crater

Dec 21, 2018 by News Staff

New images from the High Resolution Stereo Camera (HRSC) on ESA’s Mars Express spacecraft show an impact crater in the northern lowlands of Mars. Known...

Life reconstruction of Saltriovenator zanellai. Image credit: Davide Bonadonna.

Saltriovenator zanellai: New Carnivorous Dinosaur Unveiled

Dec 20, 2018 by Enrico de Lazaro

A partial skeleton of a ceratosaurian theropod dinosaur unearthed over two decades ago in Italy has been recognized as belonging to a new genus and species. Life...

Material from the dusty and gas-rich disk (orange) plus hot gas (blue) mildly flows onto the star, creating a hot spot. Image credit: Caltech / T. Pyle, IPAC.

Astronomers Spot Young Star in ‘Growth Spurt’

Dec 19, 2018 by News Staff

A young star in the midst of a dramatic growth phase has been observed with the help of ESA’s Gaia satellite and NASA’s Near-Earth Object Wide-field...

An artist’s concept of 2018 VG18. Image credit: Roberto Molar Candanosa / Carnegie Institution for Science.

2018 VG18 Farout: Astronomers Discover Most Distant Solar System Object Ever

Dec 18, 2018 by News Staff

Carnegie Institution astronomer Dr. Scott S. Sheppard, University of Hawaii’s Dr. David Tholen and Northern Arizona University’s Dr. Chad Trujillo...

With Saturn hanging in the blackness and sheltering NASA’ Cassini spacecraft from the Sun’s blinding glare, the probe viewed Saturn’s rings as never before, revealing previously unknown faint rings and even glimpsing its home world. Image credit: NASA / JPL / Space Science Institute.

Saturn’s Rings are Disappearing at Rapid Pace

Dec 18, 2018 by News Staff

A team of planetary researchers from the United States and the United Kingdom has discovered that Saturn’s rings are younger than previously thought...

Life reconstruction of Crittendenceratops krzyzanowskii. Image credit: Sergey Krasovskiy.

New Horned Dinosaur Discovered in Arizona

Dec 17, 2018 by Enrico de Lazaro

A new genus and species of herbivorous ceratopsid (horned) dinosaur being named Crittendenceratops krzyzanowskii has been discovered by paleontologists...

An artist’s impression of the Neptune-sized exoplanet K2-263b. Image credit: Sci-News.com.

Astronomers Discover Icy Neptune-Sized Exoplanet: K2-263b

Dec 17, 2018 by Enrico de Lazaro

Astronomers have discovered a frozen exoplanet nearly the size of Neptune orbiting the quiet G9-type dwarf star K2-263. An artist’s impression of the...

This artist’s illustration shows a giant cloud of hydrogen streaming off the warm Neptune GJ 3470b. The host star’s intense radiation is heating the hydrogen in the planet’s upper atmosphere to a point where it escapes into space. GJ 3470b is losing hydrogen at a rate 100 times faster than a previously observed warm Neptune whose atmosphere is also evaporating away. Image credit: NASA / ESA / D. Player, STScI.

Hubble Finds Fast-Evaporating Warm Neptune: GJ 3470b

Dec 14, 2018 by News Staff

Extrasolar ‘Neptunes’ are exoplanets with masses and radii similar to those of the ice giants in the Solar System. In 2015, astronomers using the NASA/ESA...

An artist’s impression of the disk of dust and gas surrounding the massive protostar MM 1a, with its companion MM 1b forming in the outer regions. Image credit: J.D. Ilee, University of Leeds.

Smaller Member of Binary Protostar Caught Forming Like Planet

Dec 14, 2018 by News Staff

While observing a massive protostar called G11.92-0.61 MM 1, a research team led by University of Leeds astronomers discovered it was not in fact one stellar...

An artist’s rendition of a supernova explosion. Image credit: ESA / Hubble / L. Calcada / NASA’s Goddard Space Flight Center.

Nearby Supernova Explosions Triggered End-Pliocene Marine Mass Extinction, Researchers Say

Dec 13, 2018 by News Staff

Approximately 2.6 million years ago (Pliocene epoch), a tsunami of cosmic energy from a massive supernova or a series of them about 150 light-years away...

This false-color image shows the dwarf planet Ceres. Image credit: NASA / JPL-Caltech / UCLA / MPS / DLR / IDA.

Dwarf Planet Ceres Has Carbon-Rich Surface, Study Suggests

Dec 13, 2018 by News Staff

The surface of the dwarf planet Ceres may contain several times the concentration of carbon than is present in the most carbon-rich, primitive meteorites...