Previous estimates gave WASP-12b around 10 million years before its inevitable demise, but these researchers say its more likely the planet smashes into its star way sooner. "According to our calculations, the planet will crash into the star [WASP-12] in just 3 million years, an incredibly s...
B A new study focuses on K2-18b, an exoplanet(系外行星) like the Earth discovered in 2015, orbiting a red dwarf star(矮星) close enough to receive about the same amount of radiation from its star as the Earth does from the sun."Studies have suggested that planets with hydrogen-rich ...
The main method used by Kepler to detect exoplanets is the transit method. This method involves observing the brightness of a star over long periods. If a planet passes (or transits) in front of its star from our perspective, it blocks a small fraction of the starlight, causing a periodic...
in anews release. “It is one of the most massive hot Jupiters known and one of the closest to its host star, and these characteristics lead to unexpected behavior.”
exoplanets are also called extrasolar planets. the closest exoplanet is named proxima centauri b. astronomers can detect the distance of the exoplanet from its star by studying the time between transits. this method of detection is called doppler spectroscopy. which of the following ...
dubbed HD 63433 d. This new exoplanet is just 400 million years old (Earth is about 4.5 billion years old) and about 1.1 times the diameter of Earth. It orbits eight times closer to its star than Mercury, which means the planet is very, very hot—about 2,294° F (1,257°...
根据最后一段的To come to these conclusions, the research team analyzed the data from Hubble Space Telescope observations that they made between 2016 and 2017 of the K2-18b planet passing in front of its star eight times. It allows scientists to detect distinct characters of water in a planet...
This new discovery, now named Proxima d, orbits once every five days or so, meaning that it's even closer to its star than Proxima b. Also, it is small, with only around one-quarter the mass of Earth. That makes it one of the least massive planets discovered s...
The exoplanet, located in a system about 2,600 light-years away, is eight times closer to its star than even Mercury is to the sun. Picture this: It takes less than four days for it to make a complete trip around the star.
This new discovery, now named Proxima d, orbits once every five days or so, meaning that it's even closer to its star than Proxima b. Also, it is small, with only around one-quarter the mass of Earth. That makes it one of the least massive planets discovered so...