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There’s a group of students at the University of Colorado Boulder working on a project of astronomical proportions.They’re building a prototype lunar rover that could help us understand the origins of the universe.“This is the antenna module,” student Arun Kumar says, as he demonstrates the robotic rover, controlling it with a modified Xbox controller.It’s part of NASA’s new 390

TripAdvisor has defended itself against accusations of misleading travelers by failing to stop some of its highest ranked hotels winning their status with fake reviews.UK consumer group Which? Travel analyzed a total of almost 250,000 reviews for the 10 top-ranked hotels in 10 global tourist destinations, from Las Vegas to Cape Town. It found that one in seven of the hotels had "blatant hallmarks" of fake reviews, with others raising "serious concerns."But TripAdvisor called the analysis "flawed" and said its more sophisticated detection tools were able to weed out fraudulent feedback.Which? Travel said that when it reported 15 of the worst cases to TripAdvisor, the reviews giant -- now one of the world's biggest travel websites -- admitted that all but one of the hotels in question had been caught using fake reviews in the past year.Six had previously been penalized, and two had received a "red badge warning" -- where TripAdvisor warns users that the hotel is suspected of using fake reviews, and has "repeatedly failed to remedy its behavior and refuses to cooperate with TripAdvisor's investigators."Yet, Which? Travel said it found that the review patterns had continued unabated despite the measures, and the red badges had been removed.The group has accused TripAdvisor of a "lack of serious ongoing action to address repeated abuse of the system."It says that five-star reviews left by new users who have written no other reviews should be a red flag. Its analysis compared the proportion of first-time five-star reviews with that of first-time three-star reviews, which are less likely to be faked.In total, it studied 247,277 reviews."TripAdvisor's failure to stop fake reviews and take strong action against hotels that abuse the system risks misleading millions of travelers and potentially ruining their holidays," said Which? Travel's Naomi Leach.TripAdvisor has removed hundreds of reviews in light of the investigation, Which? Travel claimed."Striking" evidence of fake reviewsHotels in the Middle East had "striking" amounts of fake positive reviews, according to the research. TripAdvisor docked 730 five-star reviews of the "best" hotel in Jordan following the analysis -- but the hotel has not been given a red badge. It remains in the top 10 in the country.At the top-ranking hotel in Cairo, 79% of five-star reviews came from one-time contributors. Just 14% of three-star reviews came from similar accounts.The hotel has lost its status as a result of the reviews' deletion.Las Vegas was another hotspot for fake reviews. At two of the top-rated hotels, almost half the five-star reviews came from one-time contributors. For a competitor which did not arouse suspicion, the figure was just 3%.Some of the top-ranked hotels in London, Paris, Barcelona and Cape Town "gave reason for suspicion," the research showed, but failed to demonstrate the same patterns across the board.Repeat offendersTripAdvisor called the analysis "based on a flawed understanding of fake review patterns," adding that "it is simply far too simplistic to assume all first-time reviewers are suspicious."It said that Which? Travel did not have access to IP [internet protocol] information or location data, both of which TripAdvisor uses to detect fake reviews."We analyze hundreds of data points about each review -- most of which only we have access to -- and we combine that data with a wealth of knowledge and understanding of review patterns that our team of experts has gained from tracking hundreds of millions of reviews over a near 20-year period," said the company."This includes an ability to track and analyze first-time reviews in far more detail and with far more rigor than Which's team was able to do."Online reviews influence an annual estimated ￡23 billion ( billion) of booking transactions in the UK alone, according to the UK government."Sites like TripAdvisor must do more to ensure the information on their platforms is reliable," said Naomi Leach."If they continue to fall short, they should be compelled to make changes so holidaymakers are no longer at risk of being duped by a flood of fake reviews." 4152

There will be some familiar faces in next installment of the Jurassic World franchise. Laura Dern, Jeff Goldblum and Sam Neill will reprise their roles as Dr. Ellie Sattler, Dr. Ian Malcolm and Dr. Alan Grant in “Jurassic World 3.” The film’s director, Colin Trevorrow, made the announcement Tuesday night during a Q&A with Dern at a special Arclight Hollywood screening. “Loved joining my buddy, Colin, to announce the return of the original cast of Jurassic Park back into the Jurassic World,” wrote Dern on an Instagram post. 545

The Supreme Court on Monday wiped away a ruling that went against a bakery in Oregon that refused to make a cake to celebrate the wedding for a same-sex couple.The justices sent back the case pitting religious liberty concerns against LGBTQ rights to the lower courts for further consideration in light of 318

The Trump administration is expected to announce its plan to enforce a controversial provision of the decades-old trade embargo on Cuba Wednesday, a senior administration official tells CNN -- a decision that will break with the precedent set by every President since Bill Clinton.US National Security Adviser John Bolton is set to outline President Donald Trump's plan to fully implement Title III of the Helms-Burton Act, a previously suspended section of the US trade embargo on the Communist-run country during a speech in Miami, the official said.It is a move that is widely considered to be part of the administration's efforts to ramp up pressure on Havana over its support for Venezuelan President Nicolas Maduro -- who Trump criticized as a "Cuban puppet" in February. Cuban officials have decried the increased sanctions on the communist-run island and offered to enter into negotiations to repay US companies for seized property.During 959