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Dr. Who used the this time machine, called the TARDIS, to travel through space and time on the BBC television show Dr. Who. Babbel1996 / Wikimedia Commons

Time travel is possible – but only if you have an object with infinite mass

Who wouldn't want to travel in time, glimpsing the dinosaurs or peeking at humans 2,000 years from now? Now physicists have designed a time machine that seems deceptively simple.
Numerous data show black students are kicked out of school at disproportionate rates. Rido/www.shutterstock.com

How activists are fighting racial disparities in school discipline

A grassroots movement to end racial disparities in schoolhouse discipline is beginning to take root throughout the nation and winning important victories at the local level. Can it sustain the effort?
President George H.W. Bush in 1990. Mark Reinstein/www.shutterstock.com

George H.W. Bush laid the foundation for education reform

Though his education initiative staggered while he was in office, the late former President George H.W. Bush had an influence that continues to shape education policy, an education historian says.
Sgt. Ron Helus, killed by gunshot Nov. 8, 2018, was remembered and honored at his funeral Nov. 14, 2018. Al Seib /Los Angeles Times via AP, Pool

Forget lanes – we all need to head together toward preventing firearm injury

In response to the NRA telling doctors to 'stay in their lane' on gun control, doctors loudly and clearly came back with this response: This is our lane. A surgeon explains their concern and urgency.
Vaccine work because they help create herd immunity. JPC-PROD/Shutterstock.com

3 ethical reasons for vaccinating your children

Billboards spreading misinformation on the risks of vaccination have popped up around American cities. A bioethicist explains why decisions not to vaccinate children are indefensible.
A memorial vigil for the victims of the shooting at the Tree of Life Synagogue where a shooter killed 11 and wounded six on Oct. 27, 2018. AP Photo/Gene J. Puskar

Terror isn’t always a weapon of the weak – it can also support the powerful

The attack at a synagogue in Pittsburgh and the sending of pipe bombs to critics of the current administration are examples of the increase in the violence on the margins of the right.
High school students at the University of Maine Farmington’s Upward Bound program playing the World Climate simulation. Mary Sinclair

How a game can move people from climate apathy to action

In the 'World Climate' simulation, people play delegates to UN climate negotiations and work to strike an agreement that meets global climate goals. Playing it has made thousands want to take action.
Anita Hill, who accused U.S. Supreme Court nominee Clarence Thomas of sexual harassment, amid heavy security when she was to testify before the Senate Judiciary Committee, Oct. 10, 1991. AP Photo/Doug Mills

Things have changed since Anita Hill – sort of

Anita Hill charged in 1991 that Supreme Court nominee Clarence Thomas sexually harassed her. He was still confirmed. Now, another nominee faces sexual assault allegations. Have times changed?
An exam room at the Planned Parenthood South Austin Health Center in Texas. REUTERS/Ilana Panich-Linsman

Who chooses abortion? More women than you might think

One in 4 US women receives an abortion sometime in her life. Who are the women who choose to end their pregnancies?
This African woman suffers from an autoimmune disease called vitiligo which causes the loss of skin pigment. By andreonegin/shutterstock.com

New treatment in the works for disfiguring skin disease, vitiligo

An autoimmune disease called vitiligo causes white spots to appear on the body, in some cases completely erasing an individual's pigmentation. But a new therapy is on the horizon.
The reliability of a new guideline for the management of chronic hepatitis C is questionable, given the financial conflicts of interest documented by its authors. (Shutterstock)

Can you rely on the drugs that your doctor prescribes?

In the run up to the Global Hepatitis Summit 2018, new guidelines for the management of hepatitis C should come under scrutiny – for financial conflict of interest and quality of evidence.
Despite alarming news, retirees can still rely on their retirement nest eggs. Dan Kosmayer/Shutterstock.com

Social Security’s future is safe

Social Security will have to dip into its trust fund to pay benefits this year for the first time since 1982. Should we be worried?

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