Morning Overview on MSN

Scientists say the universe may be reflecting itself like a mirror maze

Cosmologists are increasingly entertaining a radical possibility: that the cosmos might fold back on itself so that, on the ...
Astronomy

Ask Astro: What causes the pattern of diffraction spikes in astronomical images?

Diffraction spikes, visible in high-power astronomical images, are an intrinsic optical phenomenon in reflecting telescopes, primarily caused by the diffraction and subsequent interference of incoming ...