General Science

Pfizer has reported mid-stage clinical-trial results for berobenatide, an investigational GLP-1 receptor agonist being studied as a possible once-monthly obesity injection. The development is important for UPSC because it connects biotechnology, chronic disease management, clinical-trial regulation, public health policy, India’s rising obesity burden and ethical questions around access to expensive weight-loss medicines.

In a first of its kind, the European Space Agency (ESA) and the Chinese Academy of Sciences (CAS) launched the SMILE mission (Solar wind Magnetosphere Ionosphere Link Explorer) on 19 May 2026 aboard a Vega-C rocket to study Earth's magnetic shield against the Sun. SMILE will capture the first-ever X-ray images of the magnetosphere. This article explains the SMILE mission, Earth's magnetosphere, solar wind, geomagnetic storms, auroras, space weather, the four science instruments, the highly elliptical orbit, and how it links to India's Aditya-L1 — everything UPSC aspirants need on this landmark space-science mission.

The 2025 Nobel Prize in Physiology or Medicine has been awarded to Japanese scientist Shimon Sakaguchi and American scientists Mary E. Brunkow and Frederick J. Ramsdell for their pioneering discoveries on regulatory T cells. These cells act as essential "security guards" in the immune system, ensuring it fights off harmful invaders like viruses and bacteria without mistakenly attacking the body's own healthy cells. This breakthrough, announced by the Nobel Committee, highlights the mechanism of peripheral immune tolerance and opens new pathways for treating autoimmune diseases and enhancing cancer therapies, addressing a long-standing puzzle in immunology.