Download CBSE Class Physics 12 Pre-Board Sample Papers 2025–26 with solutions for all subjects in free PDF format. These papers are curated by experts as per the latest CBSE syllabus and exam pattern.

"The Xuntian telescope has been the most important scientific project since the launch of our country's space station program." When you purchase through links on our site, we may earn an affiliate ...

Five years after the collapse of the Arecibo Observatory telescope — the world’s largest single-dish radio telescope until 2016, when China completed a larger one — space physicist Qihou Zhou is ...