Question: Why are brother's showing affection to the same girl, Elana?
About the article "The Vampire Diaries", section "Series overview".

Candidate passages:
Artson is married to Elana Shavit Artson, and they are the parents of twins, Shira and Jacob. 
The story centers around Deanna Lambert, a teen troubled by social exile and branding rumors.
When she was thirteen, her father caught her and her brother's friend, seventeen-year-old Tommy Webber, having unprotected sex in the back of Tommy's Buick.
Word gets around by Tommy, and Deanna is named the 'school slut'.
Her father becomes distant and cold towards her, never showing any affection after what he witnessed.
Three years later, Deanna still lives in her small hometown of Pacifica, California.
Her affair with Tommy Webber is still a popular gossip topic and her older brother, Darren, and his girlfriend, Stacy, now live in their basement with their illegitimate child, April.
Keeping a fantasy of moving out of the house with Darren, April and Stacy in her mind and coming to a happy home, Deanna gets a summer job at a ratty pizza parlor, Picasso's Pizza, while also dealing with inhibited feelings of affection for her best friend, Jason, who is dating her other friend, Lee.
As the summer progresses, Deanna's secret love of Jason deepens.
She begins to become more and more envious of Lee, especially of Lee's happy home and inner peace.
One day, Deanna finds that Stacy fled the house, leaving April behind, and does not return.
At the same time, she develops a friendship with her boss at Picasso's, Michael, while working alongside Tommy Webber.
One evening, Michael gives Deanna a ride home from work and Deanna's father grows suspicious of Michael's motives.
Deanna then lashes out at her father for never again trusting her after he caught Deanna and Tommy in the car, which causes her father to temporarily leave.
At the end of the story Deanna reconciles with Lee and Jason (after hanging out with only Jason while Lee was on a weekend trip, which ultimately led to Deanna kissing him and asking him why he never asked her out); Stacy suddenly arrives home ( it is revealed that she left only intending to party before returning to motherhood ); and Deanna decides to truly move on from the affair she had so long ago.
Coincidentally, her father also returns to his family and moves on from the past.
The story ends with Deanna explaining to Darren and Stacy (who have found an apartment and are going to move in there with April) that she has worked with Tommy for the whole summer.
Stacy promises that, while Deanna cannot move in with them, there will always be a toothbrush and understanding people there for her.
Soon, school has begun again, and Deanna, Jason, and Lee are now juniors.
They ask her if she is ready for the new year, and although Deanna says that she isn't ready, Lee tells her it's time to begin it. 
Wyatt immediately becomes a rival for his brother, Liam Spencer (Scott Clifton) for the affections of Hope Logan (Kim Matula).
Brooks said Wyatt's introduction sends Liam "reeling with the realization that Hope's heart, may not, in fact, be perpetually on hold for him!"
Wyatt does not shy away from the challenge of battling Liam for Hope's affection.
Of Wyatt's competitive nature with his brother Liam, Brooks said, "has always wanted a love from a brother, but he finds it fun competition for him right now in trying to get the girl!
So it’s kind of power and love at the same time."
According to Brooks, challenging Liam is Wyatt's attempt at testing the "boundaries" to "see if Liam is a worthy adversary."
Wyatt relishes in "getting under Liam's skin," Brooks said of Wyatt convincing Hope to accompany him to Mexico.
Besides Hope, Bill seeing so much of himself in Wyatt, also causes tension between the brothers.
While Bill considers some of Liam's behavior to be "un-Spencer like," but when he meets Wyatt, according to Don Diamont, Bill thinks, "Hey, look at this kid, he's great!
Built in my own image!"
Hope and Wyatt's business relationship serves as a catalyst to advance their personal relationship and Liam is very much threatened.
Wyatt enjoys to pulling Liam's strings and "[giving him a run for his money."
According to Brooks, Wyatt continues "turning the knife," in an effort to get a reaction from Liam.
Brooks said, that there would always be "some kind of sibling rivalry between and Liam and fighting for someone's affection, whether it's their dad's affection or Hope's affection."
Though they are both generally nice guys, Liam's at times comes off as a pushover and "Wyatt's hoping that does step up to make it a challenge."
With tensions high after the paternity revelation, Wyatt thinks he can help Liam by showing him some "tough love" and forcing him to be a "stronger person."
In a joint interview with "Soap Opera Digest", Brooks and Clifton discussed Wyatt and Liam's dynamic as the feuding brothers.
According to Brooks, regardless of any kind of "animosity and jealousy" between the brothers, there is an "underlying love that anybody would have if they were an only sibling and now they have somebody."
When asked to describe the relationship, Clifton said jokingly, "Liam no like Wyatt."
He continued, "I would say layered, dialectical, and in some ways paradoxical."
Brooks said, "Obviously competitive, jealous, but there's also a huge need for a brother's love that they've never had, for both of them."
NASA and the Launch Services Program are partnering with several universities to launch small research satellites.
These small satellites are called CubeSats.
CubeSat Launch Initiative (CSLI) provides opportunities for small satellite payloads to fly on rockets planned for upcoming launches.
As of 2013, CSLI has selected 89 spacecraft since 2010.ELaNa: Educational Launch of Nanosatellites is managed by NASA's Launch Services Program and is a part of CSLI.
ELaNa manifests the CubeSats selected by CSLI onto upcoming rocket launches.
CubeSats were first included on the launch of LSP missions in 2011.
ELaNa missions are not manifested exclusively on LSP missions; they have been a part of NRO/military launches and ELaNa V will be on an International Space Station resupply launch. 
A year after his brother's death, Rob discovers that the only way to help his father cope with the loss is to "force" his affection onto him.