NASA announces 715 newly discovered planetsBy SETH BORENSTEIN
For the first time ever, astronomers have discovered a system of seven Earth-sized planets orbiting around a single star. The finding was announced Wednesday by officials from NASA – the U.S. space agency – and other research team members. The discovery was also published in the journal Nat...
Astronomers at the University of Hawaiʻi Institute for Astronomy (IfA) are part of a team that recently discovered three planets orbiting dangerously close to stars nearing the ends of their lives. Out of the thousands ofextrasolar planetsfound so far, these three gas giant planets, first det...
Two of these planets orbit stars already known to host planets: HD 5319 and HD 11506. The remaining discoveries reside in previously-unknown planetary systems: HD 10442 and HD 75784. The refined orbital period of the inner planet orbiting HD 5319 is 641 days. The newly-discovered outer ...
"The three newly discovered moons are the faintest ever found around these two ice giant planets using ground-based telescopes," explained Scott Sheppard, a member of the Carnegie Institution for Science, Earth and Planets Laboratory. "It took special image processing to reveal such faint objects....
The unusually large sizes of these planets are likely related to heat flowing in and out of the their atmospheres, and several theories have been developed to explain this process. "However, since we don't have millions of years to see how a particular planetary system evolves, planet inflatio...
Astronomers say these newly discovered planets are the best places to search for aliensEmmanuel OcbazghiJessica Orwig
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the planets are determined to be35.6kmsand59.9kms.The slower planet's orbital period is6.64years.(a)What is ...
Two planets discovered last year are in the right orbit and might be good candidates (候选人) for life Quintana says, but they are a bit bigger than Earth. “For the first time, we can actually say we now have a planet that is both Earth-sized and orbits in its star’s habitable (...
Most of the 33 newly discovered planets' giant gas bags swing so erratically that they createhavocon any smaller, nearby, life-friendly planets. A.destruction B.benefits C.chaos D.violence 单项选择题 She actually preferred a moregregariousurban life style and the cultural attractions in a warmer...