by solar energy
By radiation mode
through heat waves
because there is no medium, conduction and convection need medium to spread through, they cannot spread through vacuum.
Sunlight or Solar Radiation is essentially photons, or packets of energy, emmited from the suns surface, which are able to travel through the vacuum of space at the speed of light. This comes to us in a range of wavelengths, including Visible light, Ultra violet and Infra red radiation.
By electromagnetic radiation - including visible light.
The Pheonix Suns play at the US AirwaysCenter in downtown Pheonix
The thing which protects us from suns UV rays is the ozone. It is an allotrope of oxygen element.
The sun's heat warms the Earth's surface, which in turn warms the air around us through a process called conduction. As our bodies absorb this heat, our internal temperature rises, causing us to feel hot. Additionally, direct exposure to sunlight can increase our body temperature through radiation.
They used water transportation or in other words boats.
Roughly [8 and 1/3] minutes.
It's because the sun is so hot that its heat can reach earth. If you think about it it's pretty cool because were so far away but its heat can still reach us.
The heat generated in the sun prevents us from reaching it. The heat is about 5500 degrees celcius and no ordinary human or supernatural machine can reach the sun.