Astro Blog articles for marshall

Beacons or Fireworks?

Posted: 30 Mar 2012

In the local, old Universe we only see intense bursts of star formation when galaxies collide - but the young Universe was a very different place, it seems. Georgios Magdis is using the Herschel and VLA telescopes to measure the amount of gas in massive galaxies 1-4 billion years after the Big Bang, and finding that mergers weren't so important back then. Some galaxies had so much gas they could sustain long periods of star formation, without the need for a merger to compress the gas at all - they look more like beacons than fireworks. Phil Marshall caught up with Georgios and asked him a few questions about his work.

What Can You See in the Night Sky This Week?

Posted: 31 Jan 2012

Every 90 minutes or so, the International Space Station orbits the Earth, it's six inhabitants watching over us as we go about our daily lives. In the dark before dawn or just after dusk, it can be seen crossing the sky - but in a few minutes, its gone again, back into the Earth's shadow. So how do you catch our man-made shooting star?

What's Going To Happen To Betelgeuse?

Posted: 18 Jan 2012

BBC Stargazing Live is great TV - but watching #bbcstargazing on Twitter at the same time makes it even more fun. A few of us astronomers have been answering viewers' questions in real time, as they wonder about the Universe with Brian Cox and company. But here's one that had me stumped: what's going to happen to Betelgeuse? Time to call SPI-MAX...

Into the Unknown: darkmatter

Posted: 18 Jan 2012

"Be prepared to be catapulted through space-time," writes progressive artist Marion Yorston, "and navigated over the threshold from the known into the unknown." At Stargazing Oxford we are hosting an exhibition of Marion's installation artwork - and it's piqued a bit of curiosity around the sub-department. We caught up with her in the middle of her preparations and asked her a few questions. Welcome to the enigmatic world of darkmatter.

Stargazing Oxford: Thinking Big

Posted: 17 Jan 2012

Stargazing Oxford is more than just a local astronomy fair - it will represent what we at Oxford Astrophysics are all about. Think big: come and explore the Universe from the Denys Wilkinson Building!

Up, Up and Array!

Posted: 17 Jan 2012

Last week, the Very Large Array got a new name: the Karl G. Jansky Very Large Array. So who was this Jansky fellow? And what has the VLA done for us lately, anyway?

Stargazing Oxford!

Posted: 11 Jan 2012

Happy New Year everybody! Here at Oxford Astrophysics we're back at work after the Christmas break, and are particularly busy - why's that? Next week is BBC Stargazing Live!

What Happened Before the Big Bang?

Posted: 16 Nov 2011

It seems like everyone wants to know the answer to this question - not least the cosmologists at Oxford.