Chandra X ray observatory
is named in the honor of
the Nobel Prize winning scientist
Subramanyam Chandrashekhar
it was launched in July 1999
Cnandra can detect
X-rays from hot regions of the universe
such as exploded Stars
Galaxy clusters and the
edges of
the black hole
it can
even observe
X-rays
from particles just before
they fall
into
black hole
The first
x-ray
emission
it saw was
from the supermassive black hole at the center
of the Milky way Spitzer Space
Telescope is named in the honor
of the famous US scientist
astrophysicist Lyman Spitzer
it was launched in August
2003 this telescope takes
images and studies the infrared
light coming from some of the
coolest objects in the universe
including dust clouds around stars
where stars and planets are forming
and dusty Galaxies
Fermi gamma-ray Space
Telescope is named in the honor of the
the Nobel prize-winning Italian scientist
Enrico Fermi a pioneer in
high energy physics it was
launched in June 2008
this satellite can turn to observe new
gamma rays without commands from the
ground Herschel telescope
is named in honor of
William Herschel the German British 
astronomer who discovered
infrared light and the planet Uranus
it was launched in may 2009
it detects a
wide range of wavelengths Herschel will
investigate how the first galaxies were formed
and evolved and be able to
probe cold dense clouds of dust
in more detail than ever before
James Webb Space Telescope
is named in the honor of
NASA's former Chief James Edwin Webb
it is considered to be the successor to the Hubble Space
Telescope it will be launched on 31st October
2021
2021
