Written by Widya Sawitar
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KEMUSNAHAN MASSAL YANG TIDAK TERBAYANGKAN
”THE GREAT DYING”

In the years since researchers have sought evidence
linking impacts with other mass extinctions of life
throughout geologic history.
The biggest of these, 251 million years ago, ended the vibrant Permian period
and nearly left Earth sterile:
90 to 95 percent of all species died within a geologic blink of an eye.
No compelling explanation for the Permian-Triassic extinction
— widely called the "Great Dying" —
has yet gained favor.
(S&T)

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Kemanakah Bintang Gemintang di Kubah Langit Malam?

Lingkup pengaturan dalam Undang-Undang ini meliputi:

(UU RI No. 21 Tahun 2013 tentang Keantariksaan, Bab I Pasal 6 Butir a hingga n)

Setiap kegiatan Keantariksaan dilarang
melakukan kegiatan yang dapat mengakibatkan pencemaran
dan/atau
kerusakan lingkungan hidup bumi dan …
(UU RI No. 21 Tahun 2013 tentang Keantariksaan, Bab II Pasal 8 Butir e)

Catatan: Dua kutipan UU ini keseluruhannya menyoal pada masalah keantariksaan dan menyinggung aspek efisiensi, keamanan, keselamatan, sesuatu yang merugikan, kelestarian lingkungan hidup, tanggung jawab, peran serta masyarakat, dll.

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“Those born under the sign of the Dragon are full of intelligence,
vitality and enthusiasm.
The Dragon is a revered sign that appears confident but can be gentle inside.
Dragons are generally popular although, being perfectionists,
can be too direct or demanding of others.”

 

Dragon 1928 1940 1952 1964 1976 1988 2000 2012
Yang Earth Metal Water Wood Fire Earth Metal Water

(Kutipan: PREVIOUS: Astrology and Astronomy)

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RIUHNYA PERKENALAN BUMI DENGAN ASTEROID

In the years since researchers have sought evidence
linking impacts with other mass extinctions of life
throughout geologic history.
The biggest of these, 251 million years ago, ended the vibrant Permian period
and nearly left Earth sterile:
90 to 95 percent of all species died within a geologic blink of an eye.
No compelling explanation for the Permian-Triassic extinction
— widely called the "Great Dying" —
has yet gained favor.
(skyandtelescope)

Gambar 1
Jatuhnya Meteor di Bumi
(Credit: Don Davis / NASA; armaghplanet dan skyandtelescope)

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DINAMIKA ORBIT DAN KELUARGA ASTEROID

 

Artikel ini khusus dipersembahkan dan sebagai kenangan akan
Prof. DR. Suryadi Siregar
seorang Guru Besar Astronomi ITB yang baru tanggal 15 Januari 2018 berpulang.
“Innalillahi wa inna ilaihi rojiun”
Seorang dosen sekaligus kolega yang handal, dengan keramahannya yang khas.
“Wawargita ing Widya withing Jagad Rana Adi Ganesha”

Sekedar coretan tulisan seperti inilah
yang dapat penulis tuangkan
sebagai ungkapan terima kasih atas segala apa yang pernah diberikan,
“especially grateful to him that always provided advice on the theme”.
Bidang asteroid dengan beragam aspeknya adalah spesialisasi Beliau.

And as a single point source in astronomical community
that just like star in the complexity of universe,
there is the existence of him, that have contributed something,
more or less in astronomical aspect.
In author’s suggestion for the young,
not to forget and always keep in mind that as a single particle in universe
which always learn and try to give a commitment and consistency in astronomy,
still make an effort based on
“No one came except with the knowledge of his inability”.
At last; idea of this theme is mainly based on his dedication on Astronomy.

Selamat Jalan Pak.