Skip to content
Search

Latest Stories

Indian techie helps NASA find Vikram lander on Moon

INDIA'S second lunar exploration mission- Chandrayaan-2's Vikram lander, which crashed on the surface of the Moon in September, has been found by NASA, the US space agency confirmed on Tuesday (3), lauding a Chennai-based techie who helped it trace the debris of India's ambitious lunar mission by spending hours comparing before and after images of the landing site.

NASA's confirmation came nearly three months after India's Chandrayaan-2 mission made a hard landing near the uncharted lunar south pole in the wee hours of September 7.


"The Chandrayaan2 Vikram lander has been found by our NASA Moon mission, the Lunar Reconnaissance Orbiter. See the first mosaic of the impact site," NASA said in a tweet sharing before and after impact images.

On September 7, the Indian Space Research Organisation (ISRO) attempted a soft landing of Vikram on the Moon.

However, ISRO lost contact with Vikram shortly before the scheduled touchdown.

NASA's Lunar Reconnaissance Orbiter Camera (LROC) team had released the first mosaic of images acquired during its September 17 flyby of the Moon.

The US space agency released a mosaic image of the site on September 26 (but taken on September 17), inviting people to compare it with images of the same area before the crash to find signs of the lander.

The first person to come up with a positive identification was Chennai-based IT professional Shanmuga Subramanian, who confirmed the identification of the crashing site of Vikram by comparing before and after images.

"The debris first located by Shanmuga is about 750 metres northwest of the main crash site and was a single bright pixel identification in that first mosaic," NASA said.

After receiving this tip, the LROC team confirmed the identification by comparing the before and after images.

"When the images for the first mosaic were acquired the impact point was poorly illuminated and thus not easily identifiable," NASA said in a statement, adding that two subsequent image sequences were acquired on October 14 and 15, and November 11.

The LROC team scoured the surrounding area in these new mosaics and found the impact point about 2,500 feet to the southeast of the planned touchdown site, and a spray of debris emanating outward.

The November mosaic had the best pixel scale (0.7 metre) and lighting conditions (72 degrees incidence angle), NASA said.

"The November mosaic shows best the impact crater, ray and extensive debris field. The three largest pieces of debris are each about 2x2 pixels and cast a one pixel shadow," the statement said.

On October 3, Subramanian, a Chennai-based mechanical engineer, had tagged the twitter handles of NASA, LRO and ISRO in a tweet, asking, "Is this Vikram lander? (1 km from the landing spot) Lander might have been buried in Lunar sand?".

On November 17, he further zeroed in on his observations and tweeted out the possible crash site of the lander.

"This might be Vikram lander's crash site (Lat:-70.8552 Lon:21.71233 ) & the ejecta that was thrown out of it might have landed over here … (The one on the left side was taken on July 16th & one on the right side was from Sept 17)," he said in a tweet accompanying the images.

As it turns out, Subramanian was spot on with his inferences, and now NASA has lauded him for finding the lander.

"NASA has credited me for finding Vikram Lander on Moon's surface VikramLander  Chandrayaan2," Subramanian said in another tweet on Tuesday.

"Thank you for your email informing us of your discovery of debris from the Vikram lander. The LROC team confirmed that the location does exhibit changes in images taken before and after the date of the landing," said deputy project scientist Lunar Reconnaissance Orbiter mission John Keller.

"Using this information, the LROC team did additional searches in the area and located the site of the primary impact as well as other debris around the impact location and has announced the sighting on the NASA and ASU pages where you have been given credit for your observation," Keller said.

"I apologise for the delay in getting back to you. We needed to be certain of our interpretation of the observation as well as making sure that all stakeholders had an opportunity to comment before we could before we could announce the results. Congratulations for what i am sure was a lot of time and effort on your part," the scientist in his letter to Subramanian who shared it on Twitter.

Ever since ISRO lost contact with Vikram, NASA had made several attempts to locate the Chandrayaan-2 lander with the help of its Lunar Reconnaissance Orbiter.

The LRO flew over Vikram's landing site once on September 17 and next on October 14.

Chandrayaan-2 mission to the Moon launched in July. If the spacecraft had reached the surface in one piece on September 7, India would have been only the fourth country to successfully put a lander on the Moon.

(PTI)

More For You

Air India

The Amritsar-Birmingham and Amritsar-London Gatwick routes will each increase from three to four weekly flights, while Ahmedabad-London Gatwick will go from three to five weekly flights.

Air India to increase flights between UK and India from March 30

AIR INDIA will increase flight frequencies on key routes as part of its Northern Summer schedule, effective 30 March 2025.

In the UK, the airline will add three more flights on the Delhi-London Heathrow route, increasing from 21 to 24 weekly flights using a mix of A350-900 and upgraded B787-9 aircraft.

Keep ReadingShow less
Pablo-Escobar-merchandise-Getty

Escobar, killed by security forces in 1993, remains a figure of global interest, with his image appearing on souvenirs like T-shirts, mugs, and keychains. (Photo: Getty Images)

Colombia considers ban on Pablo Escobar merchandise

COLOMBIA’s Congress is considering a bill that would ban the sale of merchandise featuring drug lord Pablo Escobar and other convicted criminals.

The proposed law aims to curb the glorification of Escobar, who was responsible for thousands of deaths during his time leading the Medellín cartel, reported BBC.

Keep ReadingShow less
Assisted dying bill: Judge approval scrapped for expert panel safeguard

Polls show most Britons back assisted dying, with supporters calling for the law to reflect public opinion.

Assisted dying bill: Judge approval scrapped for expert panel safeguard

Eastern Eye

THE proposed new assisted dying law for terminally ill people will be amended to remove the requirement that a high court judge sign off on each case, Labour MP Kim Leadbeater said on Tuesday (11).

Opponents of assisted dying said the change would weaken the safeguards around protecting vulnerable people from being coerced or pressured into taking their own lives.

Keep ReadingShow less
Andrew Malkinson

Malkinson, 59, has been struggling financially since his release and has been on universal credit for 19 months. (Photo: X/@NotThatBigIan)

Wrongful rape conviction: Andrew Malkinson to get 'significant' compensation

ANDREW MALKINSON, who spent 17 years in prison for a rape he did not commit, will receive a six-figure interim compensation payment from the Ministry of Justice.

The payment comes more than a year after his conviction was overturned by the Court of Appeal in July 2023.

Keep ReadingShow less
IMF team visits Pakistan to assess governance and corruption reforms

The assessment will shape structural reforms and examine protections for property rights and foreign investments

IMF team visits Pakistan to assess governance and corruption reforms

Eastern Eye

A TECHNICAL team from the International Monetary Fund met Pakistan’s chief justice Yahya Afridi on Tuesday (11) to conduct a Governance and Corruption Diagnostic Assessment under the 2024 Extended Fund Facility programme.

The IMF team is in the country for a week-long trip to scrutinise the judicial and regulatory framework tackling governance and corruption as part of a £5.6 billion loan agreed last year.

Keep ReadingShow less