Astrobiology

Astrobiology is the interdisciplinary study of life in the universe, combining aspects of astronomy, biology and geology. It is focused primarily on the study of the origin, distribution and evolution of life. It is also known as exobiology (from Greek: έξω, exo, "outside"). The term "Xenobiology" has been used as well, but this is technically incorrect because its terminology means "biology of the foreigners". Astrobiologists must also consider the possibility of life that is chemically entirely distinct from any life found on earth.

 The Sun 

The Sun

While the Sun will probably not be physically explored in the close future, one of the reasons for going into space includes knowing more about the Sun. Once above the atmosphere in particular and the Earth's magnetic field, this gives access to the Solar wind and infrared and ultraviolet radiations that cannot reach the surface of the Earth. The Sun generates most space weather, which can affect power generation and transmission systems on Earth and interfere with, and even damage, satellites and space probes.

Space Exploration

Space exploration is the use of astronomy and space technology to explore outer space. Physical exploration of space is conducted both by human spaceflights and by robotic spacecraft. While the observation of objects in space, known as astronomy, predates reliable recorded history, it was the development of large and relatively efficient rockets during the early 20th century that allowed physical space exploration to become a reality. Common rationales for exploring space include advancing scientific research, uniting different nations, ensuring the future survival of humanity and developing military and strategic advantages against other countries. Various criticisms of space exploration are sometimes made.

Meteor Praseid(s)

Hujan meteor Perseid adalah fenomena alam yang berupa hujan meteor yang terjadi setiap tahun. Hujan meteor ini terjadi dimulai dari pertengahan Juli, dan mencapai puncaknya pada tanggal 12-14 Agustus.

Nama Perseids berasal dari nama Rasi bintang Perseus karena hujan meteor ini seolah-olah berasal dari arah Rasi Bintang Parseus.Perseus adalah suatu rasi bintang di belahan utara, melambangkan pahlawan Yunani Kuno yang melawan Medusa. Rasi ini adalah salah satu rasi dari 48 rasi bintang Ptolemy dan juga satu dari 88 rasi bintang modern. Rasi ini memiliki bintang variable terkenal yaituAlgol (β Per), dan juga tempat dari hujan meteor tahunan Perseids. Namun meteor ini juga diklaim berasal dari serpihan komet Swift-Turtle yang terbentuk saat melintasi bagian dalam orbit Matahari. 

EarthSky’s Meteor Shower Guide for 2010

The 2010 Perseid meteor shower – August’s famous ’shooting stars’ – will peak in this coming week, on the mornings of August 12 and 13. The shower has been gradually rising to a peak since early August. Any night this week, you might see Perseid 

meteors.