Did you know choosing the train can take up to 500 cars off the road? Just one train at a time.

One gig at a time, one last minute plan, one festival, one going then, why not at a time?

One train journey at a time can help create a greener future.

So when will you take your next trip? Find out more at nationalrail.co.uk for what's

slash greener.

Today's show is brought to you by RxBar. For 25% off your first order, visit rxbar.com slash

astro and enter promo code astro during checkout.

Astronomycast Episode 487 Dark Matter Update

Welcome to Astronomycast, a weekly fax based journey through the cosmos where we help you understand

not only what we know but how we know what we know. I'm Fraser Kane, publisher of the

universe today with me as always is Dr. Pamela gave the director of technology and citizen science

of the astronomical society of the Pacific and the director of cosmocost and Pamela you

are actually at the astronomical society the Pacific which I think is awesome.

I am, I'm in San Francisco as soon as I'm done with the work day I'm heading up to Sacramento

and yeah it's great to actually be like at the headquarters of the company I work for

and get to see some of my best friends which I made strictly because of this show.

Right on and a huge thank you to the astronomical society the Pacific for the support of all

of the kind of educational work that we do through cosmocost and astrosphere and you know

we couldn't have a better partner in being able to get all this educational information out and be

able to get all the citizen science done. They've been a real treat to work with and I can't

wait that I get a chance to come down and visit them.

So one just big big piece of news which is as I think I've mentioned briefly Dave Dickinson

...