New Atlas

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Hubble spots "hot Neptune" exoplanet that's evaporating at a record rate

Michael Irving December 13, 2018

A type of world dubbed a "hot Neptune" has been conspicuously few and far between in terms of exoplanet discoveries, but a new observation may explain why. Hubble has now spotted a hot Neptune named GJ 3470b that’s vanishing at a record rate.

An illustration of GJ 3470b, shrouded in a cloud of gas as its atmosphere is stripped ...

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Climate simulations forecast the weather on all seven TRAPPIST exoplanets

Michael Irving November 22, 2018

Among the almost-4,000 exoplanets found so far, none really capture the imagination like TRAPPIST-1. Now a team of astronomers led by the University of Washington has simulated the climates that could be found on each TRAPPIST world.

An artistic render of a temperate TRAPPIST-1 f, which could also be frozen or stifling under ...

Space

Alien life could be wiped out by outbursts from violent young stars

Michael Irving October 21, 2018

The majority of stars in our Milky Way aren’t Sun-like – they’re the smaller and cooler red dwarfs. To determine how well these stars might be able to support life, A NASA program is using Hubble to monitor their flare activity, and the first results don’t paint a positive picture.

An artist's rendering of a red dwarf star, which could sterilize exoplanets with its intense radiation ...

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Earthquake vibrations suggest Earth's inner core is solid but squishy

Michael Irving October 21, 2018

It’s long been thought that the Earth's inner core is a solid ball of iron, but direct evidence is hard to come by. Now, researchers from the Australian National University (ANU) have detected a type of seismic wave passing through the core that only propagates through solid objects.

By measuring seismic waves passing through the center of the Earth, researchers have concluded that the ...

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New moon rising? Astronomers spot evidence of first exomoon

Michael Irving October 3, 2018

Although it’s basically a sure thing that exomoons are out there, astronomers haven’t been able to spot any – until now. Scientists using NASA’s Hubble and Kepler space telescopes have found evidence of a large moon orbiting a gas giant planet some 8,000 light-years away.

An artist's impression of the exomoon which may have been discovered orbiting the distant planet Kepler ...

Space

"Goblin" dwarf planet found lurking at the extreme fringes of the solar system

Michael Irving October 3, 2018

There could be thousands of dwarf planets – Pluto-sized or smaller – lurking at the very edges of the Sun’s influence. Now, astronomers have spotted a new distant dwarf with an incredibly wide orbit, lending further evidence to the idea that a much bigger “Planet X” is out there somewhere.

An artist's impression of Planet X, a hypothetical Super-Earth that lurks at the fringes of the ...

Environment

NASA study uncovers three factors responsible for Earth's irregular spin

Michael Irving September 20, 2018

The Earth’s spin naturally drifts on its axis over time, and that’s generally chalked up to the way mass is distributed and redistributed across the planet’s surface. Now, NASA scientists studying data gathered across the entire 20th century have identified three broad processes that play a part.

A NASA study has found three main factors contributed to a shift in the Earth's axis ...

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Should Pluto be allowed back in the planet club?

Michael Irving September 9, 2018

Pluto was demoted from planet status to dwarf planet in 2006. But a new study suggests it should be resurrected as a planet, since the definition the object failed to meet was not based on precedents set in scientific literature.

A new study argues that Pluto should still be classified as a planet

Space

Meteorites reveal Jupiter's troubled childhood

David Szondy August 29, 2018

Jupiter may be the largest planet in the solar system, but it experienced growing pains. That's the conclusion of a team of scientists, who say that Jupiter grew in three stages with a two-million-year gap during which it grew very slowly, affecting the development of the rest of the solar system.

Jupiter's southern hemisphere photographed by NASA's Juno probe

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The giant rogue planet abuzz with auroral radio signals

Michael Irving August 5, 2018

A brown dwarf was recently downgraded to planet status (albeit a huge one), and now astronomers have discovered that it generates an enormous magnetic field, which could provide a new tool in the search for exoplanets.

An artist's rendition of SIMP J01365663+0933473, a massive rogue planet with a surprisingly strong magnetic field