Every explainer we have published, newest first.
On September 16, 2026 the US Fed raised its policy rate by a quarter point to 3.75%-4%, its first hike since July 2023, and signalled another may follow. Oil-driven infla...
News about the market often says "FIIs sold, DIIs bought". Foreign portfolio investors (FPIs, formerly called FIIs) and domestic institutional investors (DIIs) invest dif...
Ice floats because it is about 10 percent less dense than liquid water. When water freezes, its molecules lock into an open lattice that spreads them apart. This oddity k...
On October 2, 2026, three Indian companies had payloads deployed from a SpaceX Falcon 9 rideshare flight called Transporter-18. One senses heat from space, one runs AI on...
If the RBI raises the repo rate on October 7, not every borrower is hit the same way. Your EMI depends on whether your loan is linked to the repo rate or to your bank's M...
The Nifty 50 has now closed lower for eight weeks in a row, the longest such run since 2001. Expensive oil, record-level US bond yields, heavy foreign selling, a weak rup...
Gold dropped 8.5% in September because a stronger dollar and sharply higher real interest rates made it costlier to hold a metal that pays no interest. Yet gold ETF holdi...
India's consumer price inflation was 4.82% in August 2026, up from 4.45% in July and above the RBI's 4% target. Food inflation was 5.95%. Here is how the CPI is built, wh...
Earthquakes happen when stress builds up in Earth's crust and the rock suddenly slips along a fault. Here is how Earth's layers and moving tectonic plates cause this, wha...
Four astronauts from Crew-13 entered the International Space Station on October 1, 2026. NASA says they will grow human tissues from stem cells, study blood flow in space...
India's crude basket averaged $116.04 a barrel in September 2026, up 28.66% from August. The Finance Ministry's monthly review says this raises the import bill and price ...
Many people think summer happens when Earth is closer to the Sun. That is wrong. Seasons come from the tilt of Earth's axis, which changes how directly sunlight hits each...
More oil is moving out of the Persian Gulf than at any point since the war with Iran began on February 28, 2026, yet Brent crude is still around USD 98 to 100. Low stockp...
The Moon does not change shape. What changes is how much of its sunlit half we can see from Earth as it orbits us. Here are the eight phases in order, why a full cycle ta...
Sunlight looks white but contains every colour. The air scatters short blue waves far more than long red ones, so we see a blue sky by day and reds at sunset. Here is the...
A proposed merchant fee (MDR) on UPI is due from October 15, 2026. Person-to-person payments and merchant payments up to Rs 2,000 stay free. Above that, the standard fee ...
The rupee closed at 96.31 per US dollar on October 1, 2026, its weakest level in more than two months. Expensive oil, higher US interest rates, a stronger dollar and heav...
The Reserve Bank of India announces its policy decision on October 7, 2026. Most economists expect a 25 basis point hike to 5.50%, which would be the first increase since...