Science is the systematic study of natural and physical phenomena through observation and experimentation. It involves gathering and organizing information about the natural world to develop theories and principles that describe the operation of general laws. Key branches of science include physics, chemistry, biology, and astronomy. While early space exploration relied on human astronauts, most space science is now conducted by robotic spacecraft, which can carry sophisticated instruments to gather data inexpensively from locations throughout the solar system.

1. Jaime Uy

2. the intellectual and practical
activity encompassing the
systematic study of the structure
and behaviour of the physical
and natural world through
observation and experiment.

3. Science is the study of the nature and
behaviour of natural things and the
knowledge that we obtain about them.
... A science is a particular branch
of science such as physics, chemistry,
or biology. Physics is the best example
of a science which has developed
strong, abstract theories.

4. noun. a branch of knowledge or study
dealing with a body of facts or truths
systematically arranged and showing
the operation of general laws: the
mathematical sciences. systematic
knowledge of the physical or material
world gained through observation and
experimentation.

5. Definition of Science. ... Science is
an objective, self correcting method
for gathering and organizing
information about the natural
world through repeated
observation and experimentation.

6. Astronomy is the study of the sun,
moon, stars, planets, comets, gas,
galaxies, gas, dust and other non-
Earthly bodies and phenomena. In
curriculum for K-4 students, NASA
defines astronomy as simple
"the study of stars, planets
and space.

8. In the decades following the
first Sputnik and Explorer satellites,
the ability to put their instruments
into outer space gave scientists the
opportunity to acquire new
information about the
natural universe, information that
in many cases would have been
unobtainable any other way.

9. After Gagarin’s 1961 flight, space missions involving human
crews carried out a range of significant research, from on-site
geologic investigations on the Moon to a wide variety of
observations and experiments aboard orbiting spacecraft. In
particular, the presence in space of humans as experimenters
and, in some cases, as experimental
subjects facilitated studies in biomedicine and materials
science. Nevertheless, most space science was, and continues
to be, performed by robotic spacecraft in Earth orbit, in other
locations from which they observe the universe, or on
missions to various bodies in the solar system. In general,
such missions are far less expensive than those involving
humans and can carry sophisticated automated instruments
to gather a wide variety of relevant data.