Although 55 Cancri e is similar in composition to the rocky planets in our solar system, describing it as “rocky” could leave the wrong impression. The planet orbits so close to its star (a full orbit lasts 18 hours, compared to the 365 days of our Earth) that its surface must be ...
The brief picture of this process is that: when a certain amount of benzo[a]pyrenes are absorbed into our body, they will first be converted into benzo[a]pyrene-7,8-epoxide by the works of a series of enzymes, and then to a benzo[a]pyrene-7,8-dihydrodiol, and ultimately to a ben...
NEW YORK (AP) — Seven planets grace the sky at the end of February in what's known as aplanetary parade, though some will be difficult to spot with the naked eye. Theseplanetary hangoutshappen when several planets appear to line up inthe night skyat once. They're...
or dead star. This system is evidence that planets can survive their host star’s explosive red giant phase and is the very first confirmed planetary system that serves as an analog to the fate of the Sun and Jupiter in our own solar system. Credit: W. M. Keck Obser...
In the heliocentric model, Earth is just one of 8 “planets” in our “solar system,” all of which are said to be huge spherical Earth-like habitations or globular gas giants millions of miles away. They claim the Earth under our feet along with these 7 other planets all revolve concen...
It is one of the largest known dwarf planets in our Solar System. The size of Eris (2326 km diameter) is approximately the same as the dwarf planet Pluto (2372 km diameter) but positioned three times farther from the Sun. The orbital length is too long and completes one orbit in 557 ...
The alternative explanation for planetary shaping offered by the star-core-origin model not only explains why are all the planets in our solar system shaped into a spherical body while asteroids are made irregular, but also explains the process of planetary evolution. Because this is brand new ...
A new study suggests similar planets might be the best focus in the search for places that can host life outside our solar system.( 《星球大战》的粉丝可能还记得卢克·天行者的母星。这颗行星名为塔图因,围绕两颗恒星运行。一项新的研究表明,在寻找太阳系外可能存在生命的地方时,类似的行星可能是最好...
Scientists have found an unusual way to prevent our planet from overheating: move it to a cooler spot. All you have to do is send a few comets(彗星)in the direction of earth, and its orbit will be changed. Our world will then be sent into a safer, colder part of the solar system....
provides new insight into what seasons looks like on a planet outside our solar system. The researchers also suggest that the oval orbit, extremely high surface temperatures (2,000 degrees C- hot enough to vaporize rock) and “puffiness” of XO-3b reveal traces of the planet...