从2017年开始，每年桂花飘香的时候，以“未来生活”为主题，杭州独有的城市嘉年华都会如约而至。今年，它将与杭州城市重要新中心高质量发展大会深度合作，升级成为未来生活探索日，在科技、人文的基础上加入城市元素——致敬“人类最伟大的发明”。两年前的8月1日 ...

From the mesmerizing Butterfly nebula to the ancient Centaurus A, check out these stunning images of Galaxies shared by NASA.

The Butterfly nebula, an example of a star forming region in the Tarantula nebula. The white scale bar is 2 light years or about 120,000 AU (Astronomical Units). A bright central star, obscured by ...

那是由哈勃太空望远镜捕捉的NGC 6302（Butterfly Nebula），也就是蝴蝶星云，由7000年前的恒星大爆炸形成，美丽而神秘。 今年的主门头也是打开的状态。

The Orion Nebula is home to a star cluster defined by four massive stars known as the Trapezium. Supernova Remnants| The Crab ...

Nebula are present in our universe in several different shapes, types, and sizes, each consisting of unique properties.

于是，一只“蝴蝶”顺理成章地出现在了今年的主海报上。那是由哈勃太空望远镜捕捉的NGC 6302（Butterfly Nebula），也就是蝴蝶星云，由7000年前的恒星大爆炸形成，美丽而神秘。 今年的主门头也是打开的状态。那是一个沙漏，也像一对翅膀，预示着余杭从5000年 ...

The Butterfly Nebula is a stunning bipolar planetary nebula located in the constellation Scorpius. It's named for its ...

This stunning portrait of a star-forming nebula is a throwback to the birth of our own sun, 4.6 billion years ago. The Rosette Nebula blossoms in deep space, captured in this wonderful image taken ...

Butterfly valves are quarter-turn rotary motion valves used as throttling valves to control flow through a system. They can be used with many different media. Butterfly valves offer several advantages ...

He is a Chartered Market Technician (CMT). Daniel Balakov/ Getty Images An iron butterfly is an options trade that uses four different contracts as part of a strategy to benefit from stocks or ...

You can colour the buttercream at this stage. To make butterfly cakes, cut the top off each cake using a small serrated knife – angling the knife in slightly so that you make a concave cut.