It sounds like something out of a science-fiction movie. For the past couple of weeks, Earth's orbit has been home to a "mini-moon" the size of a city bus. The celestial object is more than just a ...

School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China School of Geography, Earth and Environmental Sciences, University of ...

The European Space Agency's Hera asteroid mission has beamed back its first images from space, capturing a stunning view of Earth and the moon. The Hera spacecraft successfully launched toward the ...