Researchers trust the warmth of perihelion - when the comet comes nearest to the Sun in its circle - will bring about the mysterious explorer to shed a greater amount of its frosty outside layer.
Assuming this is the case, it could heave out unblemished particles left from the Nearby planetary group's introduction to the world 4.6 billion years prior, they accept.
Furthermore, if Comet 67P/Churyumov-Gerasimenko experiences this sensational change, Europe's Rosetta shuttle will be circling adjacent, prepared to jump on any pieces of information of how our star framework started to exist.
"This is the time the vast majority of the activity happens," said European Space Office (ESA) master Imprint McCaughrean of the weeks-long top of comet action.
The old heavenly voyager will achieve its nearest indicate our star - in the range of 186 million kilometers (116 million miles) - at around 0200 GMT on Thursday, before setting out on an additional 6.5-year egg-formed circle.
Things have been warming up for a considerable length of time, with gas and dust launching the comet's surface as sunlight based warmth changes its solidified covering into a space whirlwind.
This is "the best chance to catch material and examine it in case you're searching for uncommon types of atoms," particularly natural ones, McCaughrean told AFP.
"We need to take a gander at the more flawless material that may turn out" from underneath the layer of frigid dust stripped from the surface.
Most energizing would be if the duck-formed comet's "neck" - which has a 500-meter (1,640-foot) split - were to break in two to uncover the crude internal parts.
"That is truly the Heavenly Chalice... to see the inside of the comet," said McCaughrean, however most researchers trust a separation is improbable this time around.
- Trade off: Security versus science -
In any situation, ground groups dealing with the 20-year-old Rosetta mission will probably need to hold up weeks, if not months, to investigate new information.
First and foremost, there has been no word from Philae, their eyes on the ground, following July 9, and its status is obscure.
At this moment, 67P with its valuable load is tearing through space at 34.17 km for every second.
Rosetta has needed to move more remote away to maintain a strategic distance from the perplexing impacts of the dust storm on its star-following route framework.
The rocket now circles at some 200-300 km from the comet, contrasted with under 10 km at its nearest in October a year ago.
"On the off chance that we were right by it, showering in the material, they (researchers) would be super glad," said McCaughrean - however with a high danger of losing Rosetta.
"You need to do a bargain between rocket security and getting as close as could reasonably be expected," included Philae venture chief Stephan Ulamec of German space office DLR.
Rosetta's instruments can even now get particles, however these are less touchy than Philae's.
Once the most brutal outgassing is over, Rosetta will draw nearer again and try to re-build up contact with Philae, trusting that some way or another the little lab has been going about its exploratory business the whole time.
However, regardless of the fact that Philae has gone for all time quiet, researchers can take in a ton from previously, then after the fact pictures, gas tests and different estimations taken by Rosetta itself.
- Water riddle -
A few specialists trust comets crushed into our newborn child planet, furnishing it with valuable water and the substance building pieces forever.
The Rosetta mission has as of now demonstrated that at any rate similarly as water is concerned, this is not the complete picture.
Water on 67P is of a marginally distinctive concoction creation - an alternate "flavor" than Earth's.
Rosetta kept clothes washer estimated Philae on the comet on November 12 last quite a long time, seven-billion-kilometer trek.
The arrival was unpleasant, and the robot tumbled into a trench shadowed from the Sun's battery-energizing beams. Following three days of comet sniffing and pushing, its locally available force ran out, and Philae went into hibernation on November 15.
Yet, as 67P attracted closer to the Sun, it energized and woke up on June 13, just to fall quiet again not as much as after a month.
Just on the off chance that it is conscious, ground controllers have sent "visually impaired orders" for the lab to initiate a couple of fundamental analyses amid the perihelion period.
AFP