Students pose in a group with banners featuring Mars and Indian Space Research Organization (ISRO) scientists (R) as they celebrate India's Mars orbiter successfully entering the red planet's orbit, at a school in the southern Indian city of Chennai September 24, 2014. India's low-cost mission to Mars successfully entered the red planet's orbit on Wednesday, crowning what Prime Minister Narendra Modi said was a "near impossible" push to become the only country to complete the trip on its maiden attempt. The Mars Orbiter Mission was achieved on a budget of $74 million, nearly a tenth of the amount the U.S. space agency NASA spent on sending the Maven spacecraft to Mars. REUTERS/Babu 

School students light firecrackers as they hold placards to celebrate after India's Mars Orbiter successfully entered the red planet's orbit, at a school in the western Indian city of Ahmedabad September 24, 2014. India's low-cost mission to Mars successfully entered the red planet's orbit on Wednesday, crowning what Prime Minister Narendra Modi said was a "near impossible" push to become the only country to complete the trip on its maiden attempt. The Mars Orbiter Mission was achieved on a budget of $74 million, nearly a tenth of the amount the U.S. space agency NASA spent on sending the Maven spacecraft to Mars. The placards read, "India made history" and "India's Mars mission successful" (R). REUTERS/Amit Dave 

India's Polar Satellite Launch Vehicle (PSLV-C25), carrying the Mars orbiter, lifts off from the Satish Dhawan Space Centre in Sriharikota, about 100 km (62 miles) north of the southern Indian city of Chennai November 5, 2013. India launched its first rocket to Mars on Tuesday, aiming to put a satellite in orbit around the red planet at a lower cost than previous missions and potentially positioning the emerging Asian nation as a budget player in the global space race. REUTERS/Babu (INDIA - Tags: SCIENCE TECHNOLOGY TPX IMAGES OF THE DAY) 

India's Polar Satellite Launch Vehicle (PSLV-C25), carrying the Mars orbiter, blasts off from the Satish Dhawan Space Centre in Sriharikota, about 100 km (62 miles) north of the southern Indian city of Chennai November 5, 2013. India launched its first rocket to Mars on Tuesday, aiming to put a satellite in orbit around the red planet at a lower cost than previous missions and potentially positioning the emerging Asian nation as a budget player in the global space race. REUTERS/Babu (INDIA - Tags: SCIENCE TECHNOLOGY) 

India's Polar Satellite Launch Vehicle (PSLV-C25), carrying the Mars orbiter, blasts off from the Satish Dhawan Space Centre in Sriharikota, about 100 km (62 miles) north of the southern Indian city of Chennai November 5, 2013. India launched its first rocket to Mars on Tuesday, aiming to put a satellite in orbit around the red planet at a lower cost than previous missions and potentially positioning the emerging Asian nation as a budget player in the global space race. REUTERS/Babu (INDIA - Tags: SCIENCE TECHNOLOGY) 

- INDIA-MARS/MISSIONS - Chart showing the past Mars missions since 1960. India's first space probe to Mars has successfully entered the Martian orbit on Wednesday. 

- INDIA-MARS/ - Reissue - Illustrated factbox on India's Mars Orbiter Mission which entered orbit around Mars on Wednesday.