exoplanets – Astronomy Now

Using Earth templates to hunt for life-supporting exoplanets

29 March 2020 Astronomy Now

Astronomers have put together spectral templates of Earth at key points in its evolution to help next-generation telescopes identify similar exoplanets.

Forecast for extreme exoplanet: windy and hot, with a chance of iron

16 March 2020 Astronomy Now

Iron vapour in the atmosphere of a particularly hellish exoplanet condenses on the somewhat cooler night side and falls as a rain of iron droplets.

Tell-tale signatures of aurorae new tool in hunt for exoplanets

20 February 2020 Astronomy Now

Astronomers detect auroral interactions between a red dwarf and an unseen exoplanet, providing a new tool for studying exoplanet habitability.

Hottest known exoplanet’s dayside atmosphere a toasty 4,300 C

27 January 2020 Astronomy Now

Temperatures in the dayside atmosphere of the hottest known exoplanet reach a record 4,300 C, hotter than the surfaces of some stars.

TESS finds its first Earth-size planet in host sun’s habitable zone

7 January 2020 Astronomy Now

NASA exoplanet-hunting TESS satellite has found its first habitable-zone Earth-size planet and another orbiting an eclipsing binary system.

Cotton-candy worlds may be steps on planetary evolution ladder

26 December 2019 Astronomy Now

The three lowest-density exoplanets yet discovered may be steps on the planetary evolution ladder, shrinking to resemble more commonplace worlds over time.

CHEOPS launched on follow-up exoplanet research mission

24 December 2019 Stephen Clark

The European Space Agency’s CHEOPs satellite is now in space for an ambitious mission to study already-discovered exoplanets in more detail.

Water vapor common among exoplanets, but less than expected

12 December 2019 Astronomy Now

A five-year study shows water is a relatively common component of exoplanet atmospheres, but the observed abundances are less than expected, researchers say.

In a first, astronomers find traces of a planet orbiting a white dwarf

7 December 2019 Astronomy Now

Astronomers have found evidence of a Neptune-class ice giant orbiting a white dwarf, its atmosphere stripped away by intense ultraviolet radiation.

Scientists conclude planets possible around supermassive black holes

2 December 2019 Astronomy Now

Astronomers theorize supermassive black holes at the hearts of many if not all large galaxies could host thousands of large planets out to distances up to 10 light years.