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Tag: “tidally locked”

This artist's concept shows planet KELT-9b orbiting its host star, KELT-9. (NASA/JPL-Caltech)

Iron and Titanium Found in Atmosphere of Ultra-hot Exoplanet

August 17, 2018

The chemical makeup of Earth’s atmosphere is said to contain about 78% Nitrogen and 21% oxygen, with argon, carbon dioxide, and other gases making up the remaining 1%. But an international team of scientists says they have detected vapors of iron and titanium in the atmosphere of what is considered to be the hottest “ultra-hot” […]

This is an enhanced-color image of Mecury taken during NASA’s MESSENGER mission in 2015. (NASA/JHU Applied Physics Lab / Carnegie Inst. Washington)

Newly Discovered Exoplanet Resembles Planet Mercury

March 30, 2018

A newly found exoplanet called K2-229b is about 20% larger and 2.5 times more massive than Earth. But the international team of astronomers, who recently discovered it, say it’s more like a super-charged version of our solar-system’s innermost planet, Mercury. They describe the planet as hot, metallic, made of iron and nickel, circles an orange K-dwarf […]

Artist’s impression of the cool red star and gas-giant planet NGTS-1b against the Milky Way (University of Warwick/Mark Garlick)

Hot Monster Planet; No Fountain of Youth; Sunscreen Snow on Exoplanet

November 3, 2017

Hot Monster Planet Found Orbiting Small Star British astronomers say they discovered a “monster” planet orbiting a tiny star, but, according to planet formation theory, the planet should not even exist. The theory suggests a planet of its size could not be formed around such a small star. Located about 600 light years from Earth, […]

This animation shows the progression of NASA's Near-Earth Object Wide-field Survey Explorer (NEOWISE) investigation for the mission's first three years following its restart in December 2013. (NASA/JPL-Caltech/PSI)

Einstein Proven Correct; Gravitational Waves Detected; Super Hot Planet

June 8, 2017

Einstein Theory Confirmed Again In his 1915 Theory of General Relativity, physicist Albert Einstein proposed that mass can bend space time. And he predicted that when a distant star’s light passed by a large object en route to the observer, the object’s gravity can bend and brighten the starlight like a magnifying lens. This effect, called […]

The planet HD 189733b is shown here in front of its parent star. A belt of wind around the equator of the planet travels at At nearly 8,700 kilometers per hour from its day side to the night side. The day side of the planet appears blue due to scattering of light from silicate haze in the atmosphere. The night side of the planet glows a deep red due to its high temperature. (Mark A. Garlick/University of Warwick)

Scientists Measure A Mighty Wind Blowing on Exoplanet

November 16, 2015

A pair of British scientists have found that winds of over 2 kilometers per second are blowing around HD 189733b, an exoplanet located about 63 light years away from us. According to the researchers, the exoplanet’s 2 kps wind speed is about seven times the speed of sound and is 20 times more than the […]

Artist rendering of super-Earth exoplanet 55 Cancri e in close orbit with its sun. (NASA)

Astronomers Observe Exoplanet Temperatures Swinging Wildly

May 4, 2015

For the first time ever, scientists in the United Kingdom detected temperature fluctuations on a super-Earth exoplanet – 55 Cancri e, the so-called “diamond planet.” Using NASA’s Spitzer Space Telescope to study the rocky exoplanet’s thermal radiation over a two-year period, researchers led by the University of Cambridge found that the temperature on the side […]

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