Recent Posts

Ponds made to control floods can spew climate-warming gases, finds study

Ponds made to control floods can spew climate-warming gases, finds study

As Earth’s climate has been warming, the risk of urban flooding has grown, too. Building ponds to collect excess rainwater can limit that flooding. But in some places, those ponds may actually add to global warming by releasing greenhouse gases into the air. That’s the finding of 

Analyzing This: Corals stash microplastics in their skeletons

Analyzing This: Corals stash microplastics in their skeletons

Plastic pollution is piling up all over Earth and entering the oceans too. That includes tiny bits called microplastics. These are pieces that are about the size of a grain of rice or smaller. Now, researchers have found that corals stash a surprising amount of those tiny plastic shreds in 

Here’s how NASA’s Ingenuity helicopter has spent one year on Mars

Here’s how NASA’s Ingenuity helicopter has spent one year on Mars

One year ago, Ingenuity took its first flight on Mars. And its story since is that of a real-world little helicopter that could. Ingenuity traveled to the Red Planet attached to the belly of NASA’s Perseverance rover, and both arrived in Jezero crater last February (SN: 2/17/21). 

Europa may have much more shallow liquid water than scientists thought there is

Europa may have much more shallow liquid water than scientists thought there is

Europa’s frozen surface is covered with distinctive pairs of ridges that straddle troughs of ice. These double ridges are the most common features on the Jovian moon. But scientists don’t yet have a clear idea of how the oddities are created. Now, an analysis of 

This hieroglyph is the oldest known record of the Maya calendar

This hieroglyph is the oldest known record of the Maya calendar

Buried within the Las Pinturas pyramid in San Bartolo, Guatemala, thousands of painted plaster mural fragments offer a window into ancient Maya civilization. Two of those fragments form the earliest known record of a Maya calendar, created between 300 and 200 B.C. The fragments depict the 

Crumbling planets might trigger repeating fast radio bursts

Crumbling planets might trigger repeating fast radio bursts

Fragmenting planets sweeping extremely close to their stars might be the cause of mysterious cosmic blasts of radio waves. Milliseconds-long fast radio bursts, or FRBs, erupt from distant cosmic locales. Some of these bursts blast only once and others repeat. A new computer calculation suggests 

Fossil Could Rewrite History of Evolution; Birds Laying Eggs Earlier

Fossil Could Rewrite History of Evolution; Birds Laying Eggs Earlier

Chicago-area birds are nesting and laying eggs earlier than ever before. A mysterious meteor burns up over Papua New Guinea. A fossil could rewrite the history of the evolution of life on Earth. And a disturbing finding about microplastics. Joining “Chicago Tonight” to give us 

A new nuclear imaging prototype detects tumors’ faint glow

A new nuclear imaging prototype detects tumors’ faint glow

A type of light commonly observed in astrophysics experiments and nuclear reactors can help detect cancer. In a clinical trial, a prototype of an imaging machine that relies on this usually bluish light, called Cerenkov radiation, successfully captured the presence and location of cancer patients’ tumors, researchers