Results tagged “Exoplanets”

18 Earth-sized Exoplanets Discovered

Somewhat more than 4000 planets orbiting stars outside our solar system are known so far.

Researchers have spotted the formation sites of planets around a young star resembling our Sun.

Researchers have identified a young star with four Jupiter and Saturn-sized planets in orbit around it, the first time that so many massive planets have been detected in such a young system.

In this study, we investigated the differences between four commonly-used exoplanet catalogs (exoplanet.eu; exoplanetarchive.ipac.caltech.edu; openexoplanetcatalogue.com; exoplanets.org) using a Kolmogorov-Smirnov (KS) test.

Atmospheric characterization of directly imaged planets has thus far been limited to ground-based observations of young, self-luminous, Jovian planets.

New work from an international team of astronomers including Carnegie's Jaehan Bae used archival radio telescope data to develop a new method for finding very young extrasolar planets.

A University of Oklahoma astrophysics team has discovered for the first time a population of planets beyond the Milky Way galaxy.

When scientists searching for exoplanets -- worlds located beyond our solar system -- first spotted patterns in disks of dust and gas around young stars, they thought newly formed planets might be the cause.

In the search for planets similar to our own, an important point of comparison is the planet's density.

Modeling Weather on Hot Jupiters

The weather forecast for faraway, blistering planets called "hot Jupiters" might go something like this: Cloudy nights and sunny days, with a high of 2,400 degrees Fahrenheit (about 1,300 degrees Celsius, or 1,600 Kelvin).

NASA announced June 20, astronomers have discovered the youngest fully formed exoplanet ever detected.

Young stars much less massive than the Sun can unleash a torrent of X-ray radiation that can significantly shorten the lifetime of planet-forming disks surrounding these stars.

A survey of 10 hot, Jupiter-sized exoplanets conducted with NASA's Hubble and Spitzer space telescopes has led a team to solve a long-standing mystery -- why some of these worlds seem to have less water than expected.

A team of astronomers is proposing that huge spiral patterns seen around some newborn stars, merely a few million years old (about one percent our sun's age), may be evidence for the presence of giant unseen planets.

A recent and famous image from deep space marks the first time we've seen a forming planetary system, according to a study by U of T astrophysicists.

Astronomers have discovered a transiting exoplanet with the longest known year. Kepler-421b circles its star once every 704 days.

Scientists working with data from NASA's Cassini mission have developed a new way to understand the atmospheres of exoplanets by using Saturn's smog-enshrouded moon Titan as a stand-in.

The nearby star Fomalhaut A hosts the most famous planetary system outside our own solar system, containing both an exoplanet and a spectacular ring of comets.

The field of extrasolar planets has exploded over the last couple decades, providing an entirely new suite of information on planetary systems in general and perspective on our own solar system in particular.

An international team of astronomers has used HiCIAO (High Contrast Instrument for the Subaru Next Generation Optics) [Note 1] to observe a disk around the young star SAO 206462.

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