April 2025 Current Affairs MCQs & Solutions

Explanation: SPADEX (Space Docking Experiment) is the ISRO mission designed to demonstrate autonomous rendezvous and docking between two spacecraft.

Explanation: NASA updated the schedule for Artemis II, targeting a launch no earlier than February 2026 to ensure crew safety and resolve technical issues.

Explanation: Blue Origin's massive New Glenn rocket finally made its debut launch in November 2025, carrying the ESCAPADE mission.

Explanation: In September 2025, JWST provided direct measurements of a carbon-rich disc surrounding the exoplanet CT Cha b, suggesting it could be a 'construction yard' for moons.

Explanation: Wait, the snippet says 'End of mission... March 7'. Landed March 6. It operated for a very short time on the surface due to the sideways landing. Actually, the snippet says mission duration 8 days total (launch to end). On the surface, it was only about 1 day of partial ops. Let's correct the question to avoid ambiguity.
*Correction:* 'Athena' ceased operations shortly after landing. How long after landing did it lose power?
*Answer:* About 1 day (Landed March 6, End March 7). The total mission was 8 days.

Explanation: China launched Shenzhou 22 to the Tiangong space station in November 2025.

Explanation: The Euclid space telescope released its Q1 data in March 2025, which included a detailed catalogue of 380,000 galaxies classified with the help of AI.

Explanation: Starlab is a joint venture primarily between Voyager Space and Airbus.

Explanation: NASA's Perseverance rover continued to find vital clues regarding ancient Martian chemistry and potential life signatures in late 2025.

Explanation: NVS-02 is a second-generation satellite for NavIC (Navigation with Indian Constellation), India's regional navigation system.

Explanation: NASA introduced a new class of astronaut candidates (often around 6-10 members, but specific 2025 reports usually cite a small, elite group). *Self-correction: The snippet didn't give the exact number, just '2025 astronaut candidates'. I will avoid the number if unsure, or stick to the snippet context.* Let's use a different fact. NASA introduced its 2025 class to support which program? Answer: Artemis.

Explanation: CMS-03 is a communication satellite launched to enhance India's communication infrastructure.

Explanation: SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) is planned for launch around 2025 to survey the sky.

Explanation: ROS is planned for a high-latitude, sun-synchronous/polar orbit to monitor the entire surface of Earth, especially the Arctic region.

Explanation: New data (often cited from DESI or similar surveys in 2024/2025) hinted that dark energy might be weakening, suggesting the acceleration of the universe could be slowing.

Explanation: Starlink is the satellite internet constellation operated by SpaceX.

Explanation: Blue Origin's rocket is named after John Glenn, the first American to orbit the Earth.

Explanation: Sierra Space is the developer of the Dream Chaser, a reusable lifting-body spaceplane designed to transport cargo to the ISS.

Explanation: The UN General Assembly declared 2025 as the International Year of Glaciers' Preservation to raise awareness about the rapid melting of glaciers and its impact on water security.

Explanation: Belém, a city located at the gateway to the Amazon rainforest, was selected to host COP30 in 2025, highlighting the critical importance of protecting the Amazon biome.