English PGC 1470080 Cited by user Galaxybeing on 29 Apr 2024 PGC 1470080 is a type E elliptical galaxy located in the Boötes constellation. It is located 3 billion light-years away from the solar system and has a diameter of 571,000…
Persian نسبیت عام Cited by user Mojtabakd on 13 Jul 2022 نسبیت عام نظریهای هندسی برای گرانش است که در سال ۱۹۱۵ توسط آلبرت اینشتین منتشر شد و توصیف کنونی گرانش در فیزیک نوین است.
English Odd number theorem Cited by user Ich on 02 Aug 2020 The odd number theorem is a theorem in strong gravitational lensing which comes directly from differential topology.