|
Amir Siraj
Amir Siraj (born in 2000) is an American astrophysicist, pianist, and science and music communicator. Career Astrophysics Siraj earned bachelor's and master's degrees at Harvard University, and is currently pursuing his PhD at Princeton University. His research is primarily focused on interstellar objects, asteroids and comets, planetary system formation and evolution, supernovae, black holes, dark matter, and the search for life in the universe. Recently, he proposed the existence of unseen captured planets in the outer solar system. He discovered CNEOS 2014-01-08, the first known interstellar meteor, and as the Director of Interstellar Object Studies at the Galileo Project, is involved with the search and discovery mission for the interstellar object. His research was named one of CNN's extraordinary cosmic revelations and moments in space exploration in 2022. He was the youngest scientist named to the Forbes 30 Under 30 list in 2021, and Astronomy (magazine), ''Astronomy'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brackets
A bracket is either of two tall fore- or back-facing punctuation marks commonly used to isolate a segment of text or data from its surroundings. Typically deployed in symmetric pairs, an individual bracket may be identified as a 'left' or 'right' bracket or, alternatively, an "opening bracket" or "closing bracket", respectively, depending on the Writing system#Directionality, directionality of the context. Specific forms of the mark include parentheses (also called "rounded brackets"), square brackets, curly brackets (also called 'braces'), and angle brackets (also called 'chevrons'), as well as various less common pairs of symbols. As well as signifying the overall class of punctuation, the word "bracket" is commonly used to refer to a specific form of bracket, which varies from region to region. In most English-speaking countries, an unqualified word "bracket" refers to the parenthesis (round bracket); in the United States, the square bracket. Glossary of mathematical sym ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
