Morning Overview on MSN

For 1st time, astronomers measure mass and distance of a rogue planet

Astronomers have, for the first time, pinned down both the mass and distance of a planet that drifts through the galaxy ...
IEEE Spectrum on MSN

See the sky like never before with a DIY eyepiece

So I decided to build a low-cost DIY amplifying eyepiece, to make it easier for visitors to observe deep-sky objects but ...