“If nature is left to its own devices, about 7.59 billion years from now Earth will be dragged from its orbit by an engorged red Sun and spiral to a rapid vaporous death…
… Earth’s basic problem is that the Sun will gradually get larger and more luminous as it goes through life, according to widely held theories of stellar evolution. In its first 4.5 billion years, according to the models, the Sun has already grown about 40 percent brighter.
Over the coming eons, life on Earth will become muggier and more uncomfortable and finally impossible...
… About a billion years from now, the Sun will be 10 percent brighter. Oceans on Earth will boil away. The Sun will run out of hydrogen fuel in its core about 5.5 billion years from now and start burning hydrogen in the surrounding layers. As a result, the core will shrink and the outer layers will rapidly expand as the Sun transforms itself into a red giant…
… As a result, the red giant version of the Sun — at its maximum — will be 256 times as big across as the star is today and 2,730 times as luminous…”
This article brought to my mind a Marathi poem.
V V Shirwadkar वि वा शिरवाडकर aka Kusumagraj कुसुमाग्रज wrote पृथ्वीचे प्रेमगीत “Earth’s Love Song” in the first half of 20th century ( विशाखा Vishakha 1942).
I had this poem to study in school (9th standard?). I liked it on the first reading.
I remember a little embarrassment of our Marathi teacher (Mr. Ligade?) reading out to the whole class carnal desires of mother earth!
One of its stanza reads as follows:
गमे की तुझ्या रुद्र रूपात जावे
मिळोनी गळा घालुनीया गळा
तुझ्या लाल ओठांतली आग प्यावी.
मिठीने तुझ्या तीव्र व्हाव्या कळा.
(“Feel like in your fierce beauty
I should merge by necking
Drink fire of your red lips.
Should feel acute pain by your embrace. “)
This is no more poet's fantasy. We think this all will happen!
The robots or cockroaches or whoever that is running the Earth in a billion years will know.
Artist: Charles Addams The New Yorker 25 July 1983