It is said that 
humans
 have Use synonyms
gain
 great Change the verb form
gained
successes
 from studying the outer world. Fix the agreement mistake
success
However
, Linking Words
this
 investment should be used more efficiently for other fields. In my opinion, I partly agree with the statement. 
About a Linking Words
half century
 ago, Add a hyphen
half-century
humans
 found a way to bring people out of Use synonyms
this
 world. A few years after, in Linking Words
1970s
, mankind achieved Change the article
the 1970s
an 
enormous success, by pushing astronauts to the moon by spaceship from the ground. It has brought a new age for science and many other fields. It gives the dream of accommodating Remove the article
apply
in
 other planets to be the truth closer than ever. It may solve the issue of Change preposition
on
over population
 on the ground, which is extremely concerning in the 21st century. Correct your spelling
overpopulation
For example
, a habitable planet like Mars is now Linking Words
being test
 to be a new house for Change the verb form
being tested
humans
. More than that, universal science Use synonyms
also
 helps the life below much Linking Words
improved
. Many services Wrong verb form
improve
in
 the earth are now being Change preposition
on
help
 with Wrong verb form
helped
a
 hand of satellites. Correct article usage
the
For instance
, people now Linking Words
using
 satellites map and images from  outer Wrong verb form
use
space
 to forecast weather, which Use synonyms
make
 our life much more convenient.
	Change the verb form
makes
However
, there are remaining many aspects Linking Words
on
 the Earth Change preposition
of
need
 carrying more carefully Correct pronoun usage
that need
instead
 of focusing on Linking Words
space
 research. In many developing countries, infrastructures are lacking and need Use synonyms
helping
 from all Replace the word
help
the
 world. But the governments just ignore and focus on Change preposition
over the
the 
Correct article usage
apply
space
 travel. It gives an imbalance in the development of the whole society. Use synonyms
For example
, Linking Words
food
 lacking issue is solved not much properly, since the investment for Correct article usage
the food
space
 study Use synonyms
are
 much bigger.
	Change the verb form
is
To sum up
, Linking Words
space
 science brings plenty of benefits, but it could be used more effectively Use synonyms
for
 other fields. The solution Change preposition
in
of
 Change preposition
to
this
 problem for Linking Words
humans
 is well Use synonyms
balancing
 between Replace the word
balance
space
 travel and social aspects.Use synonyms