28.03.2025

1. It is a third-generation, fire-and-forget anti-tank guided missile (ATGM) developed under the ‘Buy (Indian-IDDM)’ category.
2. The Nag Missile Carrier (NAMICA) is a modified BMP-2 platform designed for desert and mountainous terrains.
3. The Helina variant of Nag is a man-portable ATGM with a range of 4 km.
4. The missile is capable of defeating modern tanks equipped with Explosive Reactive Armour (ERA).

Which of the statements given above are correct?

1. It created the most detailed 3D map of the Milky Way by measuring the positions and motions of over two billion stars.
2. It discovered a new class of black holes visible only through their gravitational effects, not electromagnetic emissions.
3. It mapped nearly 50% of the Milky Way’s stellar population during its operational lifetime.

Which of the statements given above is/are correct?