Ross Brawn will stand down as principal and leave the Mercedes Formula One team at the end of the year, Mercedes said in a statement on Thursday.
Alonso said he had huge respect for Hamilton and had no problems with him.
Motorcycling world champion Valentino Rossi can make the leap to Formula One, according to Ferrari's Michael Schumacher.
Formula One plans to start its coronavirus-ravaged season in May after cancelling this weekend's opener in Australia on Friday and postponing the next three races in Bahrain, Vietnam and China. Confusingly, while Formula One said in a statement it expected to begin the championship in Europe at the end of May, the governing FIA's statement referred to May 1. Both may prove optimistic as the virus spreads across the continent.
As impressive as those results have been, Red Bull team principal Christian Horner took the opportunity after the race to issue a scary warning that his team is capable of winning every grand prix this season.
The Italian, driving an old F2004 with a rev-limited V10 engine, completed 53 laps at the Valencia circuit and was ninth fastest of the 15 drivers.
Team by team prospects for the Formula One season starting in Bahrain on March 14.
Lewis Hamilton has dismissed criticism from former Mercedes team mate Nico Rosberg as the product of someone seeking "headlines".
The Mercedes driver told reporters he would seek a clarification from race director Charlie Whiting ahead of the next race in Spain.
The Finn, advised by retired double world champion and compatriot Mika Hakkinen, spent last season learning the ropes as the team's reserve for Williams and now he is six weeks away from his race debut in Australia.
Seven-times World champion Michael Schumacher will come out of retirement to make a Formula One comeback with Mercedes next year at the age of 41, the team said on Wednesday. Mercedes Motorsports vice-president Norbert Haug told reporters in a telephone news conference that a contract was signed on Tuesday.
'Suzie' has plenty of catching up to do, however, with Red Bull struggling to string laps together in pre-season testing while their Mercedes-powered rivals showed impressive reliability.
Spaniard Daniel Juncadella will be Force India's Formula One reserve driver this season while also competing in the German Touring Car championship (DTM) with Mercedes.
A Michael Schumacher comeback would be good for Formula One, Mercedes Grand Prix chief executive Nick Fry said on Thursday. Mercedes, who have taken over the title-winning Brawn team, have been linked in media reports with the retired German great now that Britain's world champion Jenson Button has moved from Brawn to McLaren.
World champions Ferrari will unveil their 2005 Formula One car at their Maranello factory on February 25, the team said on Friday.
Seven-times Formula One champion Michael Schumacher has agreed a one-year deal to come out of retirement and drive for Mercedes in 2010, Bild newspaper reported on Tuesday. The newspaper said the 40-year-old German, who won his titles with Benetton and Ferrari and retired at the end of 2006, signed the deal at the team's offices in Brackley, England, after a month of talks.
McLaren's Lewis Hamilton will become Formula One's first rookie champion, as well as the youngest, if he wins in China on Sunday.
German driver Timo Glock is convinced compatriot Michael Schumacher will make a Formula One comeback with Mercedes next season and is looking forward to racing against him.
Jackie Stewart, Britain's only triple Formula One world champion, knows his record is on borrowed time after Lewis Hamilton's storming victory in Sunday's Bahrain Grand Prix.
Germany's Nico Rosberg will race for Mercedes next season, the team that this year won the Formula One championship as Brawn said on Monday. Rosberg has spent the last four years competing for Williams. Yet to win a race in 70 starts, the 24-year-old son of Finland's 1982 champion Keke finished seventh overall this season. His best finish is second place in Singapore in 2008.
The prospect of Ferrari pulling out of Formula One at the end of the year receded on Friday when the champions joined all the other teams in signing up conditionally for 2010.
World champion Sebastian Vettel won the Korean Grand Prix in a Red Bull one-two finish on Sunday to take the overall Formula One lead from Ferrari's Fernando Alonso with four races remaining.
Ralf Schumacher does not talk to his elder brother Michael, about Formula One any more because he is eager to win the title himself.
"He is hungry to race again and fitter than ever thanks to a new training program," said his manager.\n\n
Haas had argued that Alonso's car was in an unsafe condition after a collision because the right-hand mirror, which eventually fell off, was moving around. They also made the point they had been shown a black and orange flag, requiring a driver to pit due to mechanical problems or loose bodywork, on three occasions this season.
Formula One world champion Lewis Hamilton won the Hungarian Grand Prix on Sunday to mark McLaren's return to form after a slump of 10 races without success. Hamilton's victory, 11.5 seconds ahead of 2007 champion Raikkonen, was the 24-year-old's first since China last October, and 10th of his career.
Formula One heads for the bright lights of Singapore this weekend with the rumour mill sparking as it spins but the driver merry-go-round seemingly stalled until Lewis Hamilton makes his mind up about his future.
Ferrari will present their new Formula One car online on January 30, a day after McLaren take the wraps off their Honda-powered challenger.
Formula One's governing body is proceeding as planned with a budget cap for 2010 and Ferrari are taking legal action in France to try to stop them, FIA president Max Mosley said on Friday. Despite an apparent impasse after talks between the teams and governing body at London's Heathrow airport, Mosley doubted the champions would carry out their threat to walk away at the end of the season.
Brazilian Bruno Senna, nephew of the late triple world champion Ayrton, made his test debut for Honda in a new-look Formula One at Barcelona's Circuit de Catalunya on Monday.
Formula One has banned 'team orders' but old habits die hard and sometimes not at all.
Red Bull's Max Verstappen sang "Viva Las Vegas" after racing to a record-extending 18th victory of the season and joining Sebastian Vettel in third place on Formula One's all-time winners' list.
Formula One world champion Lewis Hamilton took pole position for his home British Grand Prix on Saturday with Mercedes teammate and title rival Nico Rosberg qualifying alongside on the front row.
Double world champion Fernando Alonso said on Tuesday he would think about quitting Formula One if the sport adopted a standard engine from 2010. Champions Ferrari, who could well figure in Alonso's future, and Toyota have already said they will consider pulling out if standard engines are imposed.
Formula One world champion Lewis Hamilton criticised recent rule changes on Friday, saying it was hard to see how they would improve the sport for spectators.
Verstappen, who is 145 points clear of team mate Sergio Perez in the championship and set for a third title well before the end of the season, suggested Wolff should focus on his own team.
Lewis Hamilton took pole position at the Italian Grand Prix for the third year in a row on Saturday with Mercedes team mate and title rival Nico Rosberg joining the Briton on the front row of the grid.
