Is the word explora the same in Brazilian and European Portuguese?

No.

While the spelling and core meaning are identical, there are differences in usage and pronunciation. In Continental Portuguese, "explora" is the standard imperative form for the pronoun tu (e.g., "Explora o parque!"). In standard Brazilian Portuguese, the second-person address is você, which requires the form "explore." Additionally, pronunciation differs; Brazilian Portuguese features more open, melodic vowels, whereas Continental Portuguese uses more closed, reduced vowels.

Brazilian Portuguese

1. Ele explora a floresta. (He explores the forest.)
2. Ela está explorando o mapa. (She is exploring the map.)
3. A empresa explora recursos naturais. (The company exploits natural resources.)
4. Você explora o seu talento. (You explore your talent.)
5. O cientista explora a área. (The scientist explores the area.)

Continental Portuguese

1. Ele explora a floresta. (He explores the forest.)
2. Ela está a explorar o mapa. (She is exploring the map.)
3. A empresa explora recursos naturais. (The company exploits natural resources.)
4. Explora o teu talento! (Explore your talent!)
5. O cientista explora a área. (The scientist explores the area.)