What is Euclid?
With less than a week to go before the scheduled launch of the Euclid spacecraft on Saturday 1st July 2023, at 1612 Irish Time (GMT+1), the Education and Public Outreach (EPO) team has been ramping up its social media activity. They’ve even got a blog! Anyway here is a nice video featuring many members of the Euclid Consortium – some of whom gave presentations at last week’s conference – talking about Euclid. The sense of enthusiasm shines through, I think. I will be sharing further videos when they appear.
In the Dark 
June 26, 2023 at 3:04 pm
From the blurb, I wasn’t quite clear what Euclid can do that the James Webb can’t (lots of things, I’m sure). Is it the fact that it observes in both the visible and the IR? And does the JW not also measure the Hubble constant?
June 26, 2023 at 3:06 pm
Euclid has a much wider field of view so it is far better adapted for survey work, especially for gravitational lensing. It’s designed for that rather than the more general purpose of JWST.
June 26, 2023 at 3:12 pm
Tnx! So I guess Euclid is the successor to PLANCK, is that right?
June 26, 2023 at 3:13 pm
Not really, as it is looking at galaxies rather than a diffuse background, and in the optical and near-infrared, rather than FIR/microwave.
June 26, 2023 at 3:20 pm
Gosh, that is exciting. Fingers crossed for the launch, I’ll be under the sofa