Space.com on MSN3 天
SpaceX rocket launches NASA SPHEREx space telescope and PUNCH solar probes (video)
There was a glimmer in the air tonight at Vandenberg Space Force Base in California, and it wasn't only because a SpaceX ...
来自MSN13 天
Interstellar tunnel found near our solar system—may be a gateway to other stars
The solar system drifts inside an immense, low-density cavity known as the Local Hot Bubble (LHB). This region, spanning at ...
Hackaday12 年
3D Printed AR-15 Lower Works
Ar15.com user [HaveBlue] has been working for some time on a 3D printed lower receiver, and now reports that the parts are fully working. Using a Stratasys 3D printer from the 90’s [HaveBlue ...
Radio Pakistan17 天
China develops 3D conic device to increase solar-thermal conversion
Chinese scientists have developed a new device of 3D hollow-cone structure that can greatly increase the solar-thermal conversion efficiency. The device, named artificial transpiration by Zhu Jia and ...
BBC2 年
Changing ideas about the Solar System
The way people think of the Solar System has changed many times throughout history. Before the development of the telescope, these ideas were based on what could be seen with the naked eye.