Get subscribed to our newsletter
Get interesting updates to your email inbox.
Researchers have discovered a previously unknown type of ancient crater lake on Mars that could reveal clues about the planet’s early climate.
In a study published in Planetary Science Journal, a team led by researchers from Brown University in the US describe an as-yet-unnamed crater with some puzzling characteristics.
The crater’s floor has unmistakable geologic evidence of ancient stream beds and ponds, yet there’s no evidence of inlet channels where water could have entered the crater from outside, and no evidence of groundwater activity where it could have bubbled up from below.
Follow NewsGram on Twitter to stay updated about the World news.
The researchers conclude that the system was likely fed by runoff from a long-lost Martian glacier.
Water flowed into the crater atop the glacier, which meant it did not leave behind a valley as it would have had it flowed directly on the ground.
The water eventually emptied into the low-lying crater floor, where it left its geological mark on the bare Martian soil.
The type of lake described in this study differs starkly from other Martian crater lakes, like those at Gale and Jezero craters where NASA rovers are currently exploring.
“This is a previously unrecognized type of hydrological system on Mars,” said Ben Boatwright, a Ph.D. student at Brown University.
“In lake systems characterized so far, we see evidence of drainage coming from outside the crater, breaching the crater wall and in some cases flowing out the other side. But that’s not what is happening here. Everything is happening inside the crater, and that’s very different than what’s been characterized before.”
Importantly, Boatwright said, the crater provides key clues about the early climate of Mars. There’s little doubt that the Martian climate was once warmer and wetter than the frozen desert the planet is today.
What’s less clear, however, is whether Mars had an Earthlike climate with continually flowing water for millennia, or whether it was mostly cold and icy with fleeting periods of warmth and melting.
Climate simulations for early Mars suggest temperatures rarely peaking above freezing, but geological evidence for cold and icy conditions has been sparse, Boatwright said. This new evidence of ancient glaciation could change that.
“The cold and icy scenario has been largely theoretical — something that arises from climate models,” Boatwright said.
“But the evidence for glaciation we see here helps to bridge the gap between theory and observation. I think that’s really the big takeaway here.”
Boatwright was able to map out the details of the crater’s lake system using high-resolution images taken by NASA’s Mars Reconnaissance Orbiter. (IANS/KB)
An ancient crater lake on Mars that was previously unknown has been discovered.
Union Finance Minister Nirmala Sitharaman on Saturday asked the Directorate of Revenue Intelligence (DRI) to prevent dumping of toxic wastes in India. Speaking at an event to celebrate DRI's 64th foundation day, Sitharaman lauded DRI's compact strength of about 800 officers for their relentless efforts despite the imminent risks. The Finance Minister stated that the officers may be keeping a low profile, but they are acting like the frontline defence forces, doing spectacular work in safeguarding the economic frontiers of the country. "The recent smuggling attempts of huge quantities of narcotics, gold, red sanders, ivory, cigarettes etc. unearthed by DRI were appreciated by the Finance Minister," the Ministry of Finance said in a statement.
"Sitharaman said that the message through such enforcement actions should be such that these acts of brazen attempts at smuggling are nipped in the bud," the statement added. The Finance Minister also said that better coordination among the law enforcement and intelligence gathering agencies and sharing of actionable intelligence are the way forward in protecting the frontiers of the country more efficiently. "Sitharaman also asked the DRI to focus on interdicting dual use technology items as well as preventing the dumping of toxic wastes in our country," the statement said. (IANS/ MBI)
(Keywords: Directorate of Revenue Intelligence, Nirmala Sitharaman, India, Toxic Wastes)
Tech giant Amazon has expanded the sound detection capabilities of Alexa along with more features. Alexa can now identify the sounds of running water and appliances beeping, reports Android Central. This means users can set up an Alexa routine to notify themselves when the washer beeps to indicate that laundry is finished, the report said.
When Alexa detects that the faucet has been left open, it will send users a notification as well so they can take appropriate action, it added. Amazon previously said at its event in September that it would add the ability to programme Alexa to recognise custom sounds, but that feature has yet to arrive. Having said that, the two new sound detection capabilities not only help users save energy, but they also make it easier to avoid paying for unnecessary charges on your home utilities, the report said.
The retail giant has also announced ultrasound motion detection, which will allow you to set up "Occupancy Routines" on additional Echo devices. This feature allows your smart speaker to detect nearby motion and initiate a routine, such as turning on the lights. It is compatible with many of the best Alexa speakers including the 4th-gen Echo, Echo Dot and Echo Dot with Clock. (IANS/ MBI)
(Keywords: laundry, appliances, beeping, running water, Sound, Alexa , Amazon)
By Olivia Sarkar
Comforting Christmas cocktails help you enjoy the celebrations and get into the festive spirit. The Leela Palaces, Hotels, and Resorts offer distinctive cocktails ranging from Hot Toddies to Decadent Egg Nogs. Sit back and enjoy one martini at a time to make the festive season a little brighter.
Dirty Chai Eggnog:
30 ml Bourbon
30 ml Baileys
90 ml Hot milk tea
Sweet cream foam to top up
Cinnamon powder and star anise.
1. In a heavy bottomed med sauce pot, prepare tea with milk. Strain and let it cool.
2. In a cocktail shaker add egg white, Bourbon, Baileys with whole spices. Shake well.
3. Pour the tea in the glass followed by ingredients from cocktail shaker.
4. Garnish with nutmeg and cinnamon powder, whole star anise
Eggnog is a Christmas favourite that is accustomed to toasts for good health and prosperity.| Pikist
Inspired by the Christmas Spirits and holiday flavours is a wonderful concoction of warm whisky, sweet vanilla, and thick butter.
45 ml Butter fat washed Whiskey
20 ml Ginger bread syrup
15 ml Spiced Apple liquor
2 dashes of Bitters
1/2 teaspoon Vanilla extract
1. Pour all ingredients into a cocktail shaker
2. Shake well
3. Pour into an old-fashioned glass
4. Garnish with Gingerbread cookie
Inspired by the Christmas Spirits and holiday flavors is a wonderful concoction of warm whisky, sweet vanilla, and thick butter. | Flickr
(Keywords: Santa's Apple, Egg Nogs, December, Cocktail, Cocktail, Christmas, holiday, celebrations)