[ad_1]
To underline just what a marvel Webb is, the below image of the Rho Ophiuchi complex was acquired by Nasa’s now retired Spitzer space telescope. Spitzer, like Webb, was sensitive to infrared light. It was a very capable facility, but with a primary mirror just 85cm in diameter, it could never have achieved the kind of detail we now see with Webb’s 6.5m primary mirror.
[ad_2]
Source link
