During Fasika, as Easter is known, Christians of all denominations celebrate Jesus Christ's death and resurrection.

For some Ethiopians , religious festivals in recent months have acquired more meaning with the conflict in the Amhara region and instability in neighboring Tigray .

Prime Minister Abiy Ahmed says it takes patience, humility and sacrifice to achieve dialogue and reconciliation to heal a nation.

Don Pettit became a septuagenarian while hurtling towards Earth in a spacecraft.

Pettit and his crewmates, Alexei Ovchinin and Ivan Vagner , orbited the Earth 3,520 times.

The trio touched down in a remote area south-east of Dzhezkazgan in Kazakhstan at 6:20am (0120 GMT ) after undocking from the space station just over three hours earlier .

Meenakshi Raghavan , 82 , is widely thought to be the oldest woman in the world to practise Kalaripayattu .

The ancient Indian martial art originated at least 3,000 years ago and is regarded as India 's oldest martial art.

Her four children were also trained in the art form by her and her husband.

No. 27 -ranked Spartans beat No. 25 Michigan , 4 -2, in last home match for seniors.

MSU 's win snapped 23 -match losing streak in rivalry with Wolverines .

Spartans' other wins came in singles as Ozan Baris , Matthew Forbes , Mitchell Sheldon and Danial Rakhmatullayev win.

Barbara Lee is the new mayor of troubled Oakland , California , a city she represented for more than two decades in Congress .

Lee , 78 , is a Black female trailblazer who represented the city in Congress for over two decades .

Lee issued a statement Saturday as mayor-elect, saying that her chief opponent, Loren Taylor , had called to concede the April 15 race.

Lee was endorsed by former Gov. Jerry Brown and other previous Oakland mayors.

Don Pettit , Aleksey Ovchinin and Ivan Vagner landed from the International Space Station .

Pettit was born on April 20, 1955 , in Silverton , Oregon , but said that the feeling of being home is relative to where you have been.

The U.S. astronaut and two Russian cosmonauts reached the ground in Kazakhstan at 9:20 p.m. EDT ( 0120 GMT or 6:20 am . local time April 20 ) Pettit 's total time in space is 590 days .

Robert Pearlman is a space historian, journalist and the founder and editor of collectSPACE.com .

Pearlman was inducted into the U.S. Space Camp Hall of Fame in Huntsville , Alabama in 2009 .

He was honored by the American Astronautical Society with the Ordway Award for Sustained Excellence in Spaceflight History.

Ashun Wu rallies to win China Open, 10 years after first title at event at event.

The 39-year-old Wu wins by one shot over Jordan Smith of England .

Haotong Li and Eugenio Chacarra of Spain finish tied for lead at event in China .

Physicists still believe that if they can come up with a coherent explanation for what actually happens in and around singularities, something revelatory will emerge.

In the late 1960s , some physicists speculated that singularities might be surrounded by a region of churning chaos.

The result was not a smooth stretching of space and time inside, but a sea of time stretching and compressing in multiple directions.

General relativity holds that two regions of space can be disconnected, meaning that nothing that takes place in one region can have any possible effect on the other.

But regions of spacetime can also become disconnected, or decoupled, in the presence of strong gravitational fields such as those found in and around a black hole.

The BKL group argued that, as you get close to a singularity, the strong gravity causes every point in space to decouple.

One can use AdS /CFT to pose a complex problem on one side, translate it into a simpler form on the other, and translate a solution back.

The correspondence is an extremely powerful tool for physicists seeking to understand gravitational phenomena such as black holes.

After Hartnoll first found BKL-like chaos in black holes, others have been trying to figure out what, exactly, causes it to arise.

Thousands join anti-Trump protests across the US on Saturday to protest recent actions by President Donald Trump .

The demonstrations were intended to coincide with the 250th anniversary of the start of the American Revolutionary War .

Many called for the return of Kilmar Ábrego García , a citizen of El Salvador , who was mistakenly deported to El Salvador .

Rice is the worldâs second largest dietary source of inorganic arsenic, and climate change appears to be increasing the amount of the highly toxic chemical that is in it.

The authors conclude that communities with rice-heavy diets could begin confronting increased risks of cancer and disease as soon as 2050 .

Inorganic arsenic is the most significant chemical contaminant in drinking water globally.

The World Health Organization classifies it as a confirmed carcinogen.

Exposure has been linked to lung, bladder, skin cancers, heart disease, diabetes, adverse pregnancy, neurodevelopmental issues, among other health impacts.

Rice production accounts for roughly 8 percent of all emissions from rice.

âBut I will tell you quite honestly that it will have the greatest effect in terms of humanity, because we all eat.â This article originally appeared in Grist at https://grist.org/food-and-agriculture/the-king-of-poisons-arsenic-is-building-up-in-rice/. Grist is a nonprofit, independent media organization dedicated to telling stories of climate solutions and a just future. Learn more at Grist.org .