Rare

For sale: painstakingly restored Vietnam War-era Marine helicopter. Records missing, but mounts, gun replicas and rocket pods included. The blades spin, but the 1965 UH-1E Huey gunship is not flyable. To view, visit Cevon McLean's backyard in Lothian. "Everyone said, 'Why'd you buy that?'" McLean said. "Well, because I could. " Last month, McLean posted the "pinnacle" of his collection on Craigslist for $175,000. So far, a man has offered to trade him a Learjet for McLean's piece of military history.

The underlying medical condition that contributed to the death of writer and filmmaker Nora Ephron and is forcing ABC news anchor Robin Roberts to get a bone marrow transplant is a rare and complicated disease that scientists are still trying to figure out. Both women were afflicted with myelodysplastic syndrome, a group of disorders caused when the body produces damaged blood cells. Abnormal cells can eventually outnumber good cells, leaving people with low blood cell counts and needing transfusions and other treatments.

The first conversation Lawrence Smith had with Randy Edsall still resonates in the mind of the veteran Dunbar football coach. “I remember Coach Edsall telling me he wanted to start a pipeline,” Smith said. “I know he's trying to start a pipeline from here to Maryland.” On Wednesday, the first piece of the proverbial Dunbar-to-Maryland pipeline was put in place with the commitment of Poets defensive end Malik Jones . The 6-foot-4, 230-pound rising senior, who also held a scholarship from UTEP, earned his offer from the Terps at camp and committed before leaving College Park.

You've heard of once in a blue moon, but what about once in a blue lobster? The crew of The Potluck fishing boat came up with a sparkling catch last week off the shores of Ocean City: a rare blue lobster. Capt. John Gourley brought in the blue lobster with his normal catch to Martin Fish Co. in West Ocean City, where he typically sells his lobsters in the retail market. But a different fate awaits Toby, as the cerulean crustacean is now known. Weighing a little more than a pound, the lobster is destined for the National Aquarium in Washington, according to Ginger Nappi, the assistant manager of Martin Fish Co., where the lobster is currently residing in a tank until aquarium officials arrive.

Good Morning America host Robin Roberts told viewers in an emotional announcement this morning that she has the rare disorder myelodysplastic syndromes. She will soon get a bone marrow transplant from her older sister. It's probably fair to say that many people probably haven't heard of the disease that also goes by MDS. MDS is actually a group of disorders that cause the bone marrow to produce an inadequate number of healthy red blood cells, white blood cells and platelets, according to the Mayo Clinic.

The problems of a 10-year-old sound something like this. "Can I pleeeaaase have an email account?" pleads Lindsey Duquette, jumping up and down in front of her mom, Pam Duquette, in the family kitchen in Sparks. "All my friends have email. " It's enough to make any parents roll their eyes. But for the Duquette family - dad is former Orioles vice president turned baseball analyst Jim Duquette - childhood dramas like this secretly make them smile. A year ago the now rambunctious Lindsey was bedridden and lethargic.

When Venus passed between Earth and the sun 251 years ago Tuesday, scientists scribbled down observations that helped calculate a rough estimate of the size of our solar system. Using crude telescopes, they watched the yellow planet move across the sun's face as a tiny black disk. There is little more the same rare phenomenon, known as a transit of Venus, will reveal about our closest neighbors in space when it occurs again Tuesday. But astronomers will be watching nonetheless, hoping it will teach them to better discover and investigate planets that are much farther away and could sustain life.

WWE Championship defenses are a rarity on Smackdown. In the promotional build to CM Punk defending the title against Kane in the main event, WWE advertised it has been four years since it last happened. That alone made tonight's Smackdown feel special. Add to that the well-hyped return of Sin Cara, and it seemed apparent WWE actually cared about getting people to watch the blue brand this week. The result of that main event, though, will be a source of consternation among wrestling fans and Internet-writing purists.

In a career spanning three decades, forensic psychiatrist Steven Hoge has evaluated just a handful of people implicated in acts of cannibalism. It's exceedingly rare behavior, he says, and clear answers are often elusive when it does occur. "I understand people are looking for an explanation, but there are some things that don't have any explanations," said Hoge, who directs the Columbia-Cornell Forensic Psychiatry Fellowship Program in New York. Hoge said he could not comment on the case of 21-year-old Alexander Kinyua, charged with first-degree murder in the killing of a man who was staying in Kinyua's family's Joppa home.

The state medical examiner's office has taken the rare step of classifying a 24-year-old woman's recent drug overdose death as a homicide, one of several recent killings being investigated by Baltimore detectives. Though there are hundreds of drug overdoses each year in Baltimore, investigators typically have little insight into the circumstances surrounding such cases. As such, the medical examiner's office declines to assign a manner of death, leading the state to have a high rate of deaths deemed “undetermined.” “If someone injects a toxic substance into somebody and kills them, everybody would call that a homicide,” said David Fowler, the state's chief medical examiner.