In the 16th century, it was shown by Paracelsus that 'the dose makes the poison' - too much medicine or anything else could kill while too little did nothing. In the 21st century activists have sought to dispel that. They claim homeopathic effects from chemicals at safe doses, endocrine distuption and u-shaped curves, but science knows better.
The recent precise measurement of the W boson mass produced by the non-dead CDF collaboration last month continues to be at the focus of attention by the scientific community, for a good reason - if correct, the CDF measurement in and of itself would be the conclusive proof that our trust in the Standard Model of particle physics when producing predictions of particle phenomenology needs a significant overhaul. 

There are many laws to protect the environment of Earth. As prt of the process in the US, NASA is inviting comments and it's the kast day to give your feedback to NASA about their Mars sample return mission plans

If you wish to comment, you have through to May 15 2022 to give your feedback to NASA about their Mars sample return mission plans. You can submit your comments to NASA here as a public comment.

At the centere of our galaxy, the Milky Way, there exists what must be a black hole. But detecting it has been challenging because of the cosmic dust around it.

Now, for the first time, a group of radio antennas knows as the Event Horizon Telescope Collaboration have unveiled the first image of the supermassive black hole four million times more massive than our Sun.

known as Sagittarius A* (Sgr A*, pronounced "sadge-ay-star") it obviously can't be seen, that is built into the black hole name, but it can be inferred thanks to a dark central region (called a “shadow”) surrounded by a bright ring-like structure. The new view captures light bent by the powerful gravity of the black hole.

Despite shutting down its operations in 2011, data from an old experiment at the Collider Detector at Fermilab (CDF) has pushed scientists to further rethink the Standard Model.

Mars doesn’t have tectonic plates like Earth, but it does have volcanically active regions that can cause rumbles, and one way to develop a better understanding of Mars’ mantle and core is to examine seismic active. In March, NASA’s InSight lander detected two strong, clear quakes originating in a location of Mars called Cerberus Fossae – the same place where two strong quakes were seen earlier in the mission. Those quakes have magnitudes of 3.3 and 3.1; the previous quakes were magnitude 3.6 and 3.5.

InSight has recorded over 1,300 quakes to date, but nothing like the magnitude 5 temblor that occurred on May 4, 2022. That is a medium-sized earthquake on Earth, they happen 5 times each day, but it is a size researchers only hoped to get during this mission on Mars.
A half-mile-long stretch of tunnel in California is now colder than most of the universe. It contains a new superconducting particle accelerator, part of an upgrade project to the Linac Coherent Light Source (LCLS) X-ray free-electron laser, one of the last milestones before LCLS-II will produce X-ray pulses that are 10,000 times brighter, on average, than those of LCLS and that arrive up to a million times per second – a world record for today’s most powerful X-ray light sources. 

Crews have successfully cooled the accelerator to minus 456 degrees Fahrenheit – or 2 kelvins – a temperature at which it becomes superconducting and can boost electrons to high energies with nearly zero energy lost in the process.
Seeing a doctor can be crucial to managing and preventing chronic disease but there has long been a racial gap in routine visits that can't be explained by racism or income. 

Maybe people didn't like like going to the doctor because the COVID-19 pandemic caused use of telemedicine to rise sharply, and as that happened gaps in visits disappeared for black patients at Penn Medicine. 

Once “normal” in-office appointments returned, previous inequities stayed erased, indicating that telemedicine wasn’t just a stopgap solution but a potential long-term tool for equity. 
Astronomers have been assuming that real new knowledge of black holes might have to wait until 2030, when/if NASA’s gravitational wave detector, LISA, launches into space.

The Event Horizon Telescope may have something else in mind. They have called a press conference for Thursday and speculation is rampant about what it might mean.