Examples abound of rings that feature multiple nitrogen atoms—the lightest of the pnictogen elements. There are triazoles, ...

School of Chemistry, Xi’an Jiaotong University, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi’an 710049, China School of Chemistry, Xi’an Jiaotong ...

Spacecrafts, spent rocket boosters and even astronauts' lost tool bags can combine with old satellites to create a halo of orbital debris that lasts for decades. The risk of all these new objects ...

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This article was first published in the State of Faith newsletter. Sign up to receive the newsletter in your inbox each Monday night. For the first time since 2005 and only the fifth time since 1900, ...

It’s very fascinating and almost borders on philosophy,” says Guilherme B Xavier. In their new experiment set-up, the Linköping researchers used photons moving forward in a circular motion, called ...

SpaDeX is the name of a new mission to be flown by the Indian Space Research Organisation (ISRO). During the mission, two satellites will be launched into orbit around the earth, where they will ...

For the first time in almost 20 years, this week the beginning of Hanukkah — the eight-day Jewish festival of lights — falls on Christmas Day, a rare quirk of the calendar that has occurred ...

The solid-fuel Kairos rocket launched from Spaceport Kii launch pad in Kushimoto, Wakayama Prefecture on December 18, 2024. JIJI PRESS/AFP via Getty Images A Japanese startup’s second attempt to ...

The first night of Hanukkah last fell on Christmas Day in 2005. Before that, the overlap occurred in 1959 and 1921. It will happen next in 2035 and then not until 2054. In 2016 and 1978 ...