My comment to space missions:

Manned space missions should all be cancelled in order to protect the health of the astronauts as well as the money of the taxpayers.
● The search for a "Second Earth" in other solar systems is a sheer waste of money, because humans will never be able to get there.
● Only the exploration of our own Solar System by better telescopes and unmanned research robots makes sense!

Examples for reasonable spaceflight:

Dawn
2007.09 takeoff from Earth
2011.07 orbit around Vesta
2015.03 orbit around Ceres
Ceres (Ø = 946km) with the crater Occator (Ø = 90km)

Image credit:
NASA/JPL-Caltech/UCLA/MPS/DLR/IDA
The photo is taken from the website
Dawn Mission (NASA)
New Horizons
2006.01 takeoff from Earth
2007.02 swing-by at Jupiter
2015.07 fly-by at Pluto

Pluto (Ø = 2374km) on July 13th, 2015 from a distance of 450000 km

Image credit:
NASA/Johns Hopkins University Applied Physics Laboratory
The photo is taken from the website
New-Horizons-Mission (NASA)
Rosetta/Philae
2004.03 takeoff from Earth
2011.06-2014.01 hibernation
2014.09 orbit around 67P/CG
2014.11 Philae lands on comet

Comet 67P/CG "Churyumov-Gerasimenko" (Ø ca. 4 km)

Image credit:
ESA/Rosetta/MPS for OSIRIS Team
MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA
This photo from August 3rd, 2014 was taken from portal of ESA