England close on 68-3, trailing by 195 runs
Hosts reduce Australia to 85-4 before stunning Marsh century takes tourists to 240-5 at tea
But Australia then lose 6-23 to be dismissed for 263 as Wood takes superb 5-34
England drop four catches - Root & Bairstow two each
Robinson goes off mid-over in second session with a back spasm
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Sir Alastair Cook
Former England captain on BBC Test Match Special
Wood just gave everything he got he was exceptional. Woakes could've easily got more wickets too and those two haven't played in the series before.
Bowling at 95mph is something you're born with, you can't teach that and that was amazing.
England bowler Mark Wood speaking to Sky Sports: "It is an amazing day. It was a great feeling to take five wickets. It was the first time in front of my mm and dad so I'm delighted.
"We're in a good position. We felt a couple of wickets away, but Mitch Marsh played fantastically well and was difficult to bowl at.
"When he was in it felt like the ball lost the zip off the wicket, but when a new batter came in it was tough again.
"The outfield is rock hard and rapid and we can score quickly if the lads get in.
"I haven't played a Test in the while but to come back fairly fresh and produce that was pretty special. I was really happy to show I could do it in home conditions as well."
Sir Alastair Cook
Former England captain on BBC Test Match Special
Marsh has kept Australia in this Test match, it seemed like he was batting on a different wicket to everyone else.
Tom Mallows
BBC Sport at Headingley
Lots of hugs and high fives from the Australia players at close, suggesting they feel they have battled their way back into this match.
Mitchell Marsh is applauded by his team-mates as he leads the Australian players off the pitch.
It has been quite the Test comeback for the all-rounder so far.
Joe Root and Jonny Bairstow will resume on 19 and one respectively in the morning.
Temperatures are meant to reach 26 degrees on Friday.
England could really make hay.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
It's been absolutely action packed today, we've seen everything.
England reach 68-3 at stumps.
They will resume 195 behind in the morning.
What a ridiculous day of cricket.
Blocked out by Jonny Bairstow.
One ball remains.
Jonny Bairstow blocks and leaves the opening four balls.
Two left. This will now be the final over of the day.
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There is no way of knowing what would have happened if a chance had been caught rather than dropped. The whole pattern of the game would be different. Players might play differently. If Head had been caught, Smith might have gone on to make 200. If Marsh had been caught, Carey might have scored more. The only situation you know for certain is the situation you're in.
Peter
Tom Mallows
BBC Sport at Headingley
There is a bit of a nervy hum around Headingley now. I think the fans will be relieved if England can escape to close without any further damage.
Jonny Bairstow gets off the ball, from his 13th ball, with a flick down to fine leg.
England haven't hit a boundary for 60 balls and 46 minutes.
Have we teleported?
Here's Zak Crawley's dismissal...
A maiden from Mitchell Starc.
Joe Root is happy to block and leave - when he's not pulling away because of movement behind the bowlers arm.
Under 10 minutes until stumps.
Simon Mann
BBC Test Match Special commentator
You can see England are starting to play a bit more carefully now.
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Australia, three chances and three wickets. England have to bowl fourteen balls to take 10 wickets. Glenn McGrath correctly points out Australia should have been out for 120. As wonderfully as England and Wood have bowled you cannot field so abysmally and expect to compete at this level.
Henry in Buxted
A single from the final ball of Mitchell Marsh's over sees Joe Root keep the strike.
Root and Jonny Bairstow seem pretty content with getting to close now.
That's just under 15 minutes at 18:30 BST.
Mark Wood has got his kit on in the England changing room.
But so does Ben Stokes.
If a wicket falls here, I wonder who we'd see.
Joe Root takes a single off Mitchell Starc but Jonny Bairstow is happy to let four balls go through to Alex Carey.
Mitchell Starc is back on.
He's got Jonny Bairstow nine times in Tests. The England keeper averages just 17.8 against him.