怕辐射星人颤抖吧：NASA Swift 卫星数小时前在仙女座星系探测到疑似伽马射线暴事件，距离人类最近的一次，如发生在银河系将会导致物种大灭绝

人类的死法很多，光是太阳就能有好多方法弄死人类。

贴个温柔的作为对比，便于大家自行脑补放大100万倍。

2011年6月7日CME（日冕物质抛射）事件：

（720p高清在油管：https://www.youtube.com/watch?v=jLpdFDGFdak）

如果喷中地球，将会摧毁所有在轨卫星，引发强磁暴，破坏地面电网，基本上各种带电的都得完蛋，人类文明倒退个几十年没问题。
运气好2011年这次没有对着地球喷，不然大家可能到今天还在搬砖重建。
1859年直接击中过地球一次，史称Carrington事件，还好当年带电的东西不多。

更新：

@果壳网：雨燕卫星小组就此事件发表了新的公告：X射线波段未见异常，事发位点的X射线值和事件发生前差异并不显著。如果真的是伽玛暴，那么X射线波段也必然会有变化。这个新公告，让这一事件看起来更奇怪了。

原始消息来源：
http://gcn.gsfc.nasa.gov/gcn/gcn3/16336.gcn3

TITLE: GCN CIRCULAR
NUMBER: 16336
SUBJECT: Swift trigger 600114 is not an outbursting X-ray source
DATE: 14/05/28 07:57:12 GMT
FROM: Kim Page at U.of Leicester <[email protected]>;

K.L. Page, P.A. Evans (U. Leicester), D.N. Burrows (PSU), V. D'Elia
(ASDC) and A. Maselli (INAF-IASFPA) report on behalf of the Swift-XRT
team:

We have re-analysed the prompt XRT data on Swift trigger 600114 (GCN Circ.
16332), taking advantage of the event data.

The initial count rate given in GCN Circ. 16332 was based on raw data from
the full field of view, without X-ray event detection, and therefore may
have been affected by other sources in M31, as well as background hot
pixels. Analysis of the event data (not fully available at the time of the
initial circular) shows the count rate of the X-ray source identified in
GCN Circ. 16332 to have been 0.065 +/- 0.012 count s^-1, consistent with
the previous observations of this source [see the 1SXPS catalogue (Evans
et al. 2014): http://www.swift.ac.uk/1SXPS/1SXPS%20J004143.1%2B413420].

We therefore do not believe this source to be in outburst. Instead, it was
a serendipitous constant source in the field of view of a BAT subthreshold
trigger.

This circular is an official product of the Swift-XRT team.

是误报，可惜了：
http://www.guokr.com/article/438504/