Abstract: This article introduces a novel concatenated coding scheme called sparse regression LDPC (SR-LDPC) codes. An SR-LDPC code consists of an outer non-binary LDPC code and an inner sparse ...

In the letter, we propose a novel RaptorQ-based unsourced random access (URA) scheme that integrates RaptorQ codes and sparse regression codes (SPARCs) to design access schemes tailored for massive ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. This voice experience is generated by AI. Learn more. This ...

Jupiter and Venus put on a spectacular performance as they met in the twilight sky on June 9 during a close planetary conjunction as Mercury lurked nearby — and we've got the photos to prove it! The ...

Time to look up, stargazers – there’s going to be a planetary "kiss" on June 9. You'll be able to spot the two brightest planets, Jupiter and Venus, with the naked eye at about 45 minutes after sunset ...

A rare celestial event will feature Venus, Jupiter, and Mercury appearing close together in the June sky. Venus and Jupiter will first appear together in a conjunction starting Tuesday, June 9.

"Orbital dynamics allows you to start to think about all those fun, different aspects of what makes our planet habitable, and ask how normal it is to have a habitable planet." When you purchase ...

Venus passes 5° south of the star Pollux at noon EDT. You can view them after sunset in the west, as Venus and Jupiter are closing in for a conjunction. Tonight the planets are 1.7° apart, standing in ...

Venus, often referred to as the "evening star," will be the brighter of the two planets and should be easy to spot shortly after sunset. The conjunction of Venus and Jupiter will continue through June ...

If you looked at the sky last night and thought to yourself, wow - those two stars are really bright and really big - congratulations. You probably caught an early glimpse of the planets Venus and ...

Polygon Summer Game Fest 2026 Live game reveals, world premiere trailers, and what’s next from 40+ developers, publishers, and hardware makers. The trailer shows Claire Redfield entering a run-down ...

Standing some 50° high in the south by 10 P.M. local daylight time, M5 is a fabulous globular cluster well within the reach of any instrument, from binoculars to telescopes. It is even visible to some ...