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CARMENES finds two temperate Earth-mass planets around a nearby small star

Today

Researchers from the Institute of Space Studies of Catalonia (IEEC  — Institut d’Estudis Espacials de Catalunya) have participated…
How NASA’s Spitzer Has Stayed Alive for So Long

5 days ago

After nearly 16 years of exploring the cosmos in infrared light, NASA’s Spitzer Space Telescope will be switched…
What Stanford researchers have learned from 300 stars

5 days ago

Over the past four years, an instrument attached to a telescope in the Chilean Andes – known as…
New Instrument is Searching for Planets Around Alpha Centauri

June 12, 2019

Alpha Centauri is the closest star system to us, at 4.37 light-years (about 25 trillion miles) away. In…
Direct from distant planet: Spectral clues to puzzling paradox

June 11, 2019

CI Tau b is a paradoxical planet, but new research about its mass, brightness and the carbon monoxide…
Meteor magnets in outer space

June 4, 2019

Astronomers believe planets like Jupiter shield us from space objects that would otherwise slam into Earth. Now they’re…
A Pair of Fledgling Planets Directly Seen Growing Around a Young Star

June 4, 2019

In order to grow to Jupiter size or larger, a gas giant planet must slurp large quantities of…
‘Forbidden’ planet found wandering ‘Neptunian Desert’

May 30, 2019

An international group of astronomers has identified a rogue planet orbiting its star in the so-called Neptunian Desert.…
The “Forbidden” Planet has been found in the “Neptunian Desert”

May 29, 2019

An exoplanet smaller than Neptune with its own atmosphere has been discovered in the Neptunian Desert, by an…
18 New Earth-sized Exoplanets have been Found in Kepler’s Data

May 28, 2019

Scientists working with data from the Kepler mission have discovered an additional 18 Earth-sized worlds. The team used…
If the orbit of an extrasolar planet is aligned in such a way that it passes in front of its star when viewed from Earth, the planet blocks out a small fraction of the star light in a very characteristic way. This process, which typically lasts only a few hours, is called a transit. From the frequency of this periodic dimming event, astronomers directly measure the length of the year on the planet, and from the transit depth they estimate the size ratio between planet and star. The new algorithm from Heller, Rodenbeck, and Hippke does not search for abrupt drops in brightness like previous standard algorithms, but for the characteristic, gradual dimming and recovery. This makes the new transit search algorithm much more sensitive to small planets the size of the Earth. Credit: ASA/SDO (Sun), MPS/René Heller
18 Earth-sized exoplanets discovered

May 22, 2019

Scientists at the Max Planck Institute for Solar System Research (MPS), the Georg August University of Göttingen, and…
Small, hardy planets most likely to survive death of their stars

May 14, 2019

Astrophysicists from University of Warwick publish a ‘survival guide’ for exoplanets. Tough, rocky planets are most likely to…
Gravitational forces in protoplanetary disks push super-Earths close to stars

May 13, 2019

The galaxy is littered with planetary systems vastly different from ours. In the solar system, the planet closest…
Habitability of Exoplanets Will Depend on Their Interiors

May 8, 2019

A lot of the headlines and discussion around the habitability of exoplanets is focused on their proximity to…
TESS Just Found its First Earth-Sized World

April 19, 2019

NASA’s new planet-hunting telescope, TESS (Transiting Exoplanet Survey Satellite), just found its first Earth-sized world. Though the Earth-sized…
Powerful Particles and Tugging Tides May Affect Extraterrestrial Life

April 17, 2019

Two new studies by UA space scientists may bring into question the habitability of TRAPPIST-1 exoplanets. Since its…
TESS finds its first Earth-sized planet

April 16, 2019

A nearby system hosts the first Earth-sized planet discovered by NASA’s Transiting Exoplanets Survey Satellite, as well as…
Proxima Centauri has a Planet in the Habitable Zone. Life Could be There Right Now

April 16, 2019

In August of 2016, astronomers from the European Southern Observatory (ESO) announced the discovery of an exoplanet in…
Heavy metal planet fragment survives destruction from dead star

April 5, 2019

A fragment of a planet that has survived the death of its star has been discovered by University…
The hunt is on for closest Earth-like planets

April 4, 2019

NASA’s new Transiting Exoplanet Survey Satellite (TESS) is designed to ferret out habitable exoplanets, but with hundreds of…
Ground-Based Telescope Directly Observes the Atmosphere of an Extrasolar Planet, and Sees Swirling Clouds of Iron and Silicates

April 3, 2019

We’ve finally got our first optical look at an exoplanet and its atmosphere, and boy is it a…
GRAVITY instrument breaks new ground in exoplanet imaging

March 29, 2019

Cutting-edge VLTI instrument reveals details of a storm-wracked exoplanet using optical interferometry. This result was announced today in…
Data flows from NASA’s TESS Mission, leads to discovery of Saturn-sized planet

March 29, 2019

Astronomers who study stars are providing a valuable assist to the planet-hunting astronomers pursuing the primary objective of…
Maybe Self-Replicating Robot Probes are Destroying Each Other? That’s Why We Don’t See Them

March 28, 2019

During the 1940s, Hungarian-American scientist John von Neumann developed a mathematical theory for how machines could endlessly reproduce…
Cooking up Alien Atmospheres on Earth

March 15, 2019

Researchers at NASA’s Jet Propulsion Laboratory in Pasadena, California, are cooking up an alien atmosphere right here on…
New Ring of Dust Discovered in the Inner Solar System

March 15, 2019

Discovering new things in space is a regular occurrence. Astronomers keep finding more distant objects in the outer…
“Goldilocks” Stars May Be “Just Right” for Finding Habitable Worlds

March 9, 2019

Scientists looking for signs of life beyond our solar system face major challenges, one of which is that…
Chances for life expand when passing stars push binaries together

March 7, 2019

Planetary systems can be harsh environments in their early history. The young worlds orbit suns in stellar nurseries,…
The case of the over-tilting exoplanets

March 6, 2019

For almost a decade, astronomers have tried to explain why so many pairs of planets outside our solar…
Discovery Alert! Kepler’s First Planet Candidate Confirmed, 10 Years Later

March 6, 2019

Planet: Kepler-1658b Discovered by: Chontos et al. using NASA’s Kepler telescope Date: February 2019 Key Facts: This newly-confirmed…
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