来自MSN2 小时
NASA discovers planet eight times bigger than Earth
NASA has been monitoring a never-before-seen planet in its solar system, which is eight times the size of Earth. The ...
来自MSN1 天
NASA tracks strange never-before-seen 'waterworld' planet eight times the size of Earth
NASA's James Webb Space Telescope has been used to shed new light on the exoplanet, GJ 1214 b, which is more than eight times ...
Live Science on MSN18 天
An interstellar visitor may have changed the course of 4 solar system planets, study suggests
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...
BBC1 年
Planets of our Solar System
Asteroids are rocky objects that orbit the Sun, just like planets do. There are millions of asteroids of very different shapes and sizes. Some are almost spheres, like planets, but most are ...
Forbes9 个月
Pluto Smashed Into Another Planet The Size Of Arizona, Say Scientists
Ever since NASA's New Horizons sent back the first-ever photos of Pluto in 2015, the dwarf planet's mysterious heart ... roughly the size of Arizona from north to south. Pluto was discovered ...