Jump to content
Join the Unexplained Mysteries community today! It's free and setting up an account only takes a moment.
- Sign In or Create Account -
UM-Bot

Mystery sky glow 'Steve' is unknown to science

10 posts in this topic

Recommended Posts

 
seanjo

They say it's not an Aurora, but surely it is linked to Solar winds and the Earths Magnetic field.

  • Like 1

Share this post


Link to post
Share on other sites
glorybebe

I love how they figured out the scientific name to fit in with STEVE.

  • Like 1

Share this post


Link to post
Share on other sites
paperdyer

It's beautiful and funky-looking at the same time.

  • Like 1

Share this post


Link to post
Share on other sites
pallidin

Stunning. Can only imagine what "pre-technology" man must have thought seeing such a site.

  • Like 1

Share this post


Link to post
Share on other sites
taniwha

Stunning.  I guess auroras evolve like everything else.  What will they look like 10,000 years from now?

Share this post


Link to post
Share on other sites
Waspie_Dwarf
16 minutes ago, taniwha said:

Stunning.  I guess auroras evolve like everything else.  What will they look like 10,000 years from now?

The same as they looked today and the same as they looked 10,000 years ago.

The processes that form them remain the same over such short time periods. 

  • Like 1
  • Thanks 1

Share this post


Link to post
Share on other sites
taniwha
14 minutes ago, Waspie_Dwarf said:

The same as they looked today and the same as they looked 10,000 years ago.

The processes that form them remain the same over such short time periods. 

A lot can happen in 10,000 years so I guess time will reveal all :)

Share this post


Link to post
Share on other sites
taniwha

Just an afterthought how long has this phenomenon STEVE been around anyway?  Is there any way to date how ancient or modern it is? Or isn't?

Share this post


Link to post
Share on other sites
L.A.T.1961
21 hours ago, taniwha said:

Just an afterthought how long has this phenomenon STEVE been around anyway?  Is there any way to date how ancient or modern it is? Or isn't?

STEVE is a purple ribbon of light that amateur astronomers in Canada have been photographing for decades, belatedly catching the attention of the scientific community in 2016. It doesn't look exactly like an aurora, but it often appears alongside auroras during geomagnetic storms. Is it an aurora -- or not? That's what Gallardo-Lacourt's team wanted to find out.

Auroras appear when energetic particles from space rain down on Earth's atmosphere during geomagnetic storms. If STEVE is an aurora, they reasoned, it should form in much the same way. On March 28, 2008, STEVE appeared over eastern Canada just as NOAA's Polar Orbiting Environmental Satellite 17 (POES-17) passed overhead. The satellite, which can measure the rain of charged particles that causes auroras, went directly above the purple ribbon. Gallardo-Lacourt's team looked carefully at the old data and found ... no rain at all.

"Our results verify that this STEVE event is clearly distinct from the aurora borealis since it is characterized by the absence of particle precipitation," say the researchers. "Interestingly, its skyglow could be generated by a new and fundamentally different mechanism in Earth's ionosphere."

 

http://spaceweather.com/archive.php?view=1&day=22&month=08&year=2018

  • Thanks 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.